AMS Sectional Meeting Full Program
Current as of Saturday, October 18, 2008 00:36:13
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2008 Fall Eastern Section Meeting
Middletown, CT, October 1112, 2008 (Saturday  Sunday)
Meeting #1042
Associate secretaries:
Lesley M Sibner, AMS
lsibner@duke.poly.edu
Saturday October 11, 2008

Saturday October 11, 2008, 7:30 a.m.4:00 p.m.
Meeting Registration
Lobby, Exley Science Center

Saturday October 11, 2008, 7:30 a.m.4:00 p.m.
Book Sale and Exhibit
Room 139, Exley Science Center

Saturday October 11, 2008, 8:00 a.m.10:50 a.m.
Special Session on Model Theory and Its Applications, I
Room 121, Exley Science Center
Organizers:
Thomas Scanlon, University of California, Berkeley scanlon@math.berkeley.edu
Philip H. Scowcroft, Wesleyan University pscowcroft@wesleyan.edu
Carol S. Wood, Wesleyan University cwood@wesleyan.edu

8:00 a.m.
On model theory for classes of finite structures.
Charles Steinhorn*, Vassar College
(104203225)

8:30 a.m.
Decreasing types in ominimal theories.
Janak Daniel Ramakrishnan*, Universite Claude Bernard Lyon I
(104203193)

9:00 a.m.
Ominimal fields with standard part map.
Jana Maříková*, Department of Mathematics and Statistics, McMaster University
(104203152)

9:30 a.m.
Characteristic sequences in unstable theories.
Maryanthe Malliaris*, University of California, Berkeley
(104203142)

10:00 a.m.
$\omega$models of Finite Set Theory.
James H. Schmerl*, University of Connecticut, Storrs
(10420356)

10:30 a.m.
Elementary pairs of models of PA.
Roman Kossak*, The Graduate Center, The City University of New York
(10420351)

Saturday October 11, 2008, 8:00 a.m.10:50 a.m.
Special Session on LowDimensional Topology, I
Room 141, Exley Science Center
Organizers:
Constance Leidy, Wesleyan University cleidy@wesleyan.edu
Shelly Harvey, Rice University shelly@rice.edu

8:00 a.m.
The Fractal Nature of Link Concordance.
Tim D Cochran*, Mathematics Department, Rice University
Shelly Harvey, Mathematics Department, Rice University
Constance Leidy, Mathematics Department, Wesleyan University
(104257183)

8:30 a.m.
On the geography and botany of OzsvathSzabo invariants.
Matthew Hedden*, M.I.T
(104257230)

9:00 a.m.
Recent progress in the knot theory of complex plane curves.
Lee Rudolph*, Clark University, Worcester, MA
(10425797)

9:30 a.m.
The second rational homology group of the moduli space of curves with level structures.
Andrew Putman*, MIT
(104255222)

10:00 a.m.
Bounding the stable genera of Heegaard splittings from below.
Jesse E Johnson*, Yale University
(104257162)

10:30 a.m.
Knots in the Heisenberg Manifold.
Prudence Heck*, Indiana University, Bloomington
(104257217)

Saturday October 11, 2008, 8:00 a.m.10:50 a.m.
Special Session on Computability Theory and Effective Algebra, I
Room 638, Exley Science Center
Organizers:
Joseph S. Miller, University of Connecticut joseph.miller@math.uconn.edu
David Reed Solomon, University of Connecticut solomon@math.uconn.edu
Asher Kach, University of Connecticut kach@math.uconn.edu

8:00 a.m.
Ramsey's Theorem and Cone Avoidance.
Carl G. Jockusch, Jr.*, University of Illinois at UrbanaChampaign
Damir D. Dzhafarov, University of Chicago
(10420341)

8:30 a.m.
Decision procedures for the isomorphism problem in unary automatic structures.
Mia Minnes*, MIT
(104203134)

9:00 a.m.
Models with High Scott Rank.
Cameron E Freer*, Dept. of Mathematics, Massachusetts Institute of Technology
(104203146)

9:30 a.m.
Computable properties of abelian $p$groups.
Valentina S. Harizanov*, George Washington University
(10420338)

10:00 a.m.
Random reals and numberings of computable trees.
Paul Brodhead*, University of Hawaii at Manoa
Bjorn KjosHanssen, University of Hawaii at Manoa
(104203205)

10:30 a.m.
Integer parts for real closed fields.
Julia F. Knight*, University of Notre Dame
(10420389)

Saturday October 11, 2008, 8:00 a.m.10:45 a.m.
Special Session on Algebraic Geometry, I
Room 137, Exley Science Center
Organizers:
Eyal Markman, University of Massachusetts, Amherst markman@math.umass.edu
Jenia Tevelev, University of Massachusetts, Amherst tevelev@math.umass.edu

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Algebraic Topology, I
Woodhead Lounge, Exley Science Center
Organizers:
Mark A. Hovey, Wesleyan University mhovey@wesleyan.edu
Kathryn Lesh, Union College leshk@union.edu

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Analysis on Metric Measure Spaces and on Fractals, I
Room 201, Exley Science Center
Organizers:
Piotr Hajlasz, University of Pittsburgh hajlasz@pitt.edu
Luke Rogers, University of Connecticut rogers@math.uconn.edu
Robert S. Strichartz, Cornell University str@math.cornell.edu
Alexander Teplyaev, University of Connecticut teplyaev@math.uconn.edu

8:30 a.m.
A lower bound for Conformal dimension.
Hrant Hakobyan*, Department of Mathematics, University of Toronto
(104228220)

9:00 a.m.
The resolvent kernel for pcf selfsimilar fractals.
Marius Ionescu, Cornell University
Erin P.J. Pearse, University of Iowa
Luke G. Rogers, University of Connecticut
HuoJun Ruan*, Zhejiang University and Cornell University
Robert S. Strichartz, Cornell University
(104228100)

9:30 a.m.
Bounds for the resolvent of the Laplacian on postcritically finite selfsimilar fractals.
Luke G. Rogers*, University of Connecticut
(104246188)

10:00 a.m.
On pseudodifferential operators on fractals.
Marius V Ionescu*, University of Connecticut
Robert S Strichartz, Cornell University
(10424678)

10:30 a.m.
Szegö limit theorems on the Sierpiński gasket.
Kasso Okoudjou*, Department of Mathematics, University of Maryland
Luke Rogers, Department of Mathematics, University of Connecticut
Robert Strichartz, Department of Mathematics, Cornell University
(104242127)

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Convex and Integral Geometry, I
Room 58, Exley Science Center
Organizers:
Monika Ludwig, Polytechnic University of New York mludwig@poly.edu
Daniel Klain, University of Massachusetts, Lowell daniel_klain@uml.edu
Franz Schuster, Vienna University of Technology schuster@dmg.tuwien.ac.at

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Riemannian and Lorentzian Geometries, I
Room 422, Public Affairs Center
Organizers:
Ramesh Sharma, University of New Haven rsharma@newhaven.edu
Philippe Rukimbira, Florida International University rukim@fiu.edu

8:30 a.m.
On a class of homogeneous spaces with nonnegative curvature.
Megan M Kerr*, Wellesley College
(104253210)

9:00 a.m.
Causal boundary of staticcomplete spacetimes.
Steven G. Harris*, Saint Louis University
(104253240)

9:30 a.m.
Causality, refocussing and linking.
Vladimir Chernov*, Mathematics Department, Dartmouth College
Yuli Rudyak, Mathematics Department, University of Florida, Gainesville
(10425305)

10:00 a.m.
Sasaki metrics with an additional contact structure.
Tedi Draghici*, Florida International University
Philippe Rukimbira, Florida International University
(104253116)

10:30 a.m.
Conformal actions of nilpotent groups on pseudoRiemannian manifolds.
Karin H Melnick*, Yale University
(10425352)

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Number Theory, I
Room 405, Exley Science Center
Organizers:
Wai Kiu Chan, Wesleyan University wkchan@wesleyan.edu
David Pollack, Wesleyan University dpollack@wesleyan.edu

8:30 a.m.
Certain Eisenstein series on loop groups.
SeokJin Kang, Seoul National University
KyuHwan Lee*, University of Connecticut
Euiyong Park, Seoul National University
(104211189)

9:00 a.m.
Weyl Group Multiple Dirichlet Series for Type C: Part I.
Jennifer Beineke*, Western New England College
Ben Brubaker, MIT
Sharon Frechette, College of the Holy Cross
(104211206)

9:30 a.m.
Weyl group multiple Dirichlet series for Type C: Part II.
Jennifer Beineke, Western New England College
Ben Brubaker, Massachusetts Institute of Technology
Sharon Frechette*, College of the Holy Cross
(104211203)

10:00 a.m.
Class Number Indivisibility in Function Fields.
Allison M. Pacelli*, Williams College
Michael Rosen, Brown University
(104211155)

10:30 a.m.
Class number indivisibility for function fields.
Siman Wong*, University of Massachusetts, Amherst
(104211119)

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Geometric Function Theory and Geometry, I
Room 421, Public Affairs Center
Organizers:
Petra BonfertTaylor, Wesleyan University pbonfert@wesleyan.edu
Katsuhiko Matsuzaki, Okayama University matsuzak@math.okayamau.ac.jp
Edward C. Taylor, Wesleyan University ectaylor@wesleyan.edu

8:30 a.m.
Quasiconformal Homogeneity of Planar Domains.
Petra BonfertTaylor, Wesleyan University
Richard Canary*, University of Michigan
Gaven Martin, Massey University
Edward Taylor, Wesleyan University
Michael Wolf, Rice University
(104230201)

9:00 a.m.
Rigid 2orbifolds in hyperbolic 3orbifolds.
Shawn Rafalski*, Fairfield University
(104257143)

9:30 a.m.
On volumes of hyperbolic 4orbifolds.
Ilesanmi Adeboye*, University of California, Santa Barbara
(10425740)

10:00 a.m.
Uniform uniform exponential growth of subgroups of the mapping class group.
Johanna Mangahas*, University of Michigan
(10422049)

10:30 a.m.
Filling at infinity.
Moon Duchin*, University of Michigan
Anne Thomas, Cornell University
(104251192)

Saturday October 11, 2008, 8:30 a.m.10:50 a.m.
Special Session on Real and Complex Dynamics of Rational Difference Equations with Applications, I
Room 136, Public Affairs Center
Organizers:
Mustafa Kulenovic, University of Rhode Island mkulenovic@mail.uri.edu
Gerasimos Ladas, University of Rhode Island gladas@math.uri.edu

Saturday October 11, 2008, 9:00 a.m.10:50 a.m.
Special Session on History of Mathematics, I
Room 309, Exley Science Center
Organizers:
Robert E. Bradley, Adelphi University bradley@adelphi.edu
Lawrence A. D'Antonio, Ramapo College of New Jersey ldant@ramapo.edu
Lee J. Stemkoski, Adelphi University stemkoski@adelphi.edu

Saturday October 11, 2008, 9:00 a.m.10:50 a.m.
Special Session on Complex Geometry and Partial Differential Equations, I
Room 104, Public Affairs Center
Organizers:
Jacob Sturm, Rutgers University sturm@andromeda.rutgers.edu
Jian Song, Rutgers University jiansong@math.rutgers.edu

Saturday October 11, 2008, 9:00 a.m.10:50 a.m.
Special Session on Geometric Group Theory and Topology, I
Room 109, Exley Science Center
Organizers:
Matthew Horak, University of WisconsinStout horakm@uwstout.edu
Melanie Stein, Trinity College melanie.stein@trincoll.edu
Jennifer Taback, Bowdoin College jtaback@bowdoin.edu

9:00 a.m.
Metric properties of braided and higherdimensional Thompson's groups.
Sean Cleary*, The City College of New York and the CUNY Graduate Center
Jose Burillo, Universitat Politècnica de Catalunya, Barcelona
(10422045)

9:30 a.m.
Distortion of Subgroups of the Generalized Thompson groups $F(n_1,...,n_k)$.
Claire W Wladis*, BMCC/CUNY
(104220112)

10:00 a.m.
A Geometric Model for $\rm{Aut}(F_2)$.
Kim Ruane*, Tufts University
Adam Piggott, Bucknell University
Genevieve Walsh, Tufts University
(104220160)

10:30 a.m.
Twisted conjugacy classes for lamplighter groups.
Jennifer Taback, Department of Mathematics, Bowdoin College
Peter N Wong*, Department of Mathematics, Bates College
(10422073)

Saturday October 11, 2008, 11:10 a.m.12:00 p.m.
Invited Address
Flows and canonical metrics in Kaehler geometry.
Room 150, Exley Science Center
Duong Hong Phong*, Columbia University
(10425303)

Saturday October 11, 2008, 2:00 p.m.2:50 p.m.
Invited Address
SL($n$)invariant notions of surface area.
Room 150, Exley Science Center
Monika Ludwig*, Polytechnic Institute of New York University
(10425202)

Saturday October 11, 2008, 3:00 p.m.4:50 p.m.
Special Session on Algebraic Topology, II
Woodhead Lounge, Exley Science Center
Organizers:
Mark A. Hovey, Wesleyan University mhovey@wesleyan.edu
Kathryn Lesh, Union College leshk@union.edu

Saturday October 11, 2008, 3:00 p.m.5:20 p.m.
Special Session on History of Mathematics, II
Room 309, Exley Science Center
Organizers:
Robert E. Bradley, Adelphi University bradley@adelphi.edu
Lawrence A. D'Antonio, Ramapo College of New Jersey ldant@ramapo.edu
Lee J. Stemkoski, Adelphi University stemkoski@adelphi.edu

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on Model Theory and Its Applications, II
Room 121, Exley Science Center
Organizers:
Thomas Scanlon, University of California, Berkeley scanlon@math.berkeley.edu
Philip H. Scowcroft, Wesleyan University pscowcroft@wesleyan.edu
Carol S. Wood, Wesleyan University cwood@wesleyan.edu

3:00 p.m.
Borel equivalence relations.
Samuel Coskey*, City University of New York
(10420394)

3:30 p.m.
Theories that exhibit $SOP_3$ but not $SOP_4$.
Rehana Patel*, Harvard University
(104203235)

4:00 p.m.
Consistent amalgamation in dependent rosy theories.
Clifton F. Ealy*, Western Illinois University
(104203242)

4:30 p.m.
Small groups of odd type.
Adrien Deloro*, Rutgers University, NJ
Eric Jaligot, CNRS, Lyon 1
(10420333)

5:00 p.m.
A generation theorem for groups of finite Morley rank.
Jeffrey Burdges*, Rutgers University
Gregory Cherlin, Rutgers University
(104203159)

5:30 p.m.
Conjugacy Theorems and Genericity Theorems in Groups of finite Morley rank (Nouvelle Cuisine).
Gregory Cherlin*, Rutgers University, New Brunswick, NJ
(10420380)

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on LowDimensional Topology, II
Room 141, Exley Science Center
Organizers:
Constance Leidy, Wesleyan University cleidy@wesleyan.edu
Shelly Harvey, Rice University shelly@rice.edu

3:00 p.m.
Construction of Hthick knots in Khovanov Homology.
Andrew W Elliott*, Rice University
(104255165)

3:30 p.m.
Stable Concordance of Links in 3manifolds.
Rob Schneiderman*, Lehman College, City University of New York
(104257213)

4:00 p.m.
Khovanov homology and contact structures.
Olga Plamenevskaya*, Stony Brook University
(104257226)

4:30 p.m.
On the relationship between the Johnson's invariant and the TuraevViro invariants of 3manifolds.
Charles D. Frohman, The University of Iowa
Joanna KaniaBartoszynska*, National Science Foundation
(104257185)

5:00 p.m.
Product Structures for Legendrian Contact Homology.
G. Civan, Georgia Institute of Technology
J. Etnyre, Georgia Institute of Technology
P. Koprowski, University of Maryland
J. Sabloff*, Haverford College
A. Walker, California Institute of Technology
(104257147)

5:30 p.m.
SeibergWitten Floer homology and symplectic forms on $S^1\times M^3$.
Cagatay Kutluhan*, Department of Mathematics, the University of Michigan
Clifford H. Taubes, Department of Mathematics, Harvard University
(10425717)

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on Computability Theory and Effective Algebra, II
Room 638, Exley Science Center
Organizers:
Joseph S. Miller, University of Connecticut joseph.miller@math.uconn.edu
David Reed Solomon, University of Connecticut solomon@math.uconn.edu
Asher Kach, University of Connecticut kach@math.uconn.edu

3:00 p.m.
Computable partitions of trees.
Jennifer Chubb*, George Washington University
(104203174)

3:30 p.m.
Computable SelfEmbeddings of Linear Orderings.
Steffen Lempp*, University of WisconsinMadison
Rodney G Downey, Victoria University of Wellington
Bart Kastermans, University of WisconsinMadison
(10420355)

4:00 p.m.
Chain conditions in computable rings.
Chris J. Conidis*, Univeristy of Chicago
(104203122)

4:30 p.m.
Degree spectra of almost computable structures.
Barbara F. Csima*, University of Waterloo
Iskander S. Kalimullin, Kazan State University
(10420399)

5:00 p.m.
Generalizing the Pullback Theorem.
Christina M Maher*, University of Notre Dame and Colby College
(104203227)

5:30 p.m.
Backandforth invariants for Boolean algebras.
Antonio Montalban, University of Chicago
Kenneth A Harris*, University of Michigan
(104203238)

Saturday October 11, 2008, 3:00 p.m.5:20 p.m.
Special Session on Analysis on Metric Measure Spaces and on Fractals, II
Room 201, Exley Science Center
Organizers:
Piotr Hajlasz, University of Pittsburgh hajlasz@pitt.edu
Luke Rogers, University of Connecticut rogers@math.uconn.edu
Robert S. Strichartz, Cornell University str@math.cornell.edu
Alexander Teplyaev, University of Connecticut teplyaev@math.uconn.edu

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on Convex and Integral Geometry, II
Room 58, Exley Science Center
Organizers:
Monika Ludwig, Polytechnic University of New York mludwig@poly.edu
Daniel Klain, University of Massachusetts, Lowell daniel_klain@uml.edu
Franz Schuster, Vienna University of Technology schuster@dmg.tuwien.ac.at

3:00 p.m.
An area preserving affine evolution.
Alina Stancu*, Concordia University
(104252121)

3:30 p.m.
Geometric interpretation of $L_p$ affine surface area.
Deping Ye*, Case Western Reserve University
(104252166)

4:00 p.m.
Affine integral geometry from a differentiable viewpoint.
Erwin Lutwak, Polytechnic Institute of NYU
Deane Yang*, Polytechnic Institute of NYU
Gaoyong Zhang, Polytechnic Institute of NYU
(104252179)

4:30 p.m.
Asymmetric $L_p$ projection bodies and affinely invariant Sobolev inequalities.
Christoph Haberl*, Vienna University of Technology
Franz Schuster, Vienna University of Technology
(10425296)

5:00 p.m.
Towards the structure of the algebra of invariant valuations in complex space forms.
Joseph H.G. Fu*, Department of Mathematics, University of Georgia
(104252129)

5:30 p.m.
Regular polygonal complexes in space.
Egon Schulte*, Northeastern University
(104251108)

Saturday October 11, 2008, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Geometry, II
Room 137, Exley Science Center
Organizers:
Eyal Markman, University of Massachusetts, Amherst markman@math.umass.edu
Jenia Tevelev, University of Massachusetts, Amherst tevelev@math.umass.edu

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on Riemannian and Lorentzian Geometries, II
Room 422, Public Affairs Center
Organizers:
Ramesh Sharma, University of New Haven rsharma@newhaven.edu
Philippe Rukimbira, Florida International University rukim@fiu.edu

3:00 p.m.
Timelike Christoffel pairs in the SplitQuaternions.
Martha Dussan, Universidade de São Paulo, Departamento de Matemática IME.
Martin Magid*, Department of Mathematics, Wellesley College
(10425339)

3:30 p.m.
Refocussing of Light Rays in Spacetime.
Paul A. Kinlaw*, Dartmouth College
(10425337)

4:00 p.m.
NonWalker selfdual neutral Einstein fourmanifolds of Petrov type III.
Andrzej Derdzinski*, Ohio State University
(104253163)

4:30 p.m.
Gluing constructions in general relativity.
Iva Stavrov*, Lewis and Clark College
(10428324)

5:00 p.m.
Manifolds with positive curvature.
Owen Dearricott*, University of California, Riverside
(104253241)

5:30 p.m.
Neutral hypercomplex structures in dimension four.
Johann Davidov, Institute of Mathematics, Bulgarian Academy of Sciences
Gueo Grantcharov*, Florida International University
Oleg Mushkarov, Institute of Mathematics, Bulgarian Academy of Sciences
(104253128)

Saturday October 11, 2008, 3:00 p.m.6:15 p.m.
Special Session on Complex Geometry and Partial Differential Equations, II
Room 104, Public Affairs Center
Organizers:
Jacob Sturm, Rutgers University sturm@andromeda.rutgers.edu
Jian Song, Rutgers University jiansong@math.rutgers.edu

Saturday October 11, 2008, 3:00 p.m.5:20 p.m.
Special Session on Number Theory, II
Room 405, Exley Science Center
Organizers:
Wai Kiu Chan, Wesleyan University wkchan@wesleyan.edu
David Pollack, Wesleyan University dpollack@wesleyan.edu

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on Geometric Function Theory and Geometry, II
Room 421, Public Affairs Center
Organizers:
Petra BonfertTaylor, Wesleyan University pbonfert@wesleyan.edu
Katsuhiko Matsuzaki, Okayama University matsuzak@math.okayamau.ac.jp
Edward C. Taylor, Wesleyan University ectaylor@wesleyan.edu

Saturday October 11, 2008, 3:00 p.m.5:20 p.m.
Special Session on Geometric Group Theory and Topology, II
Room 109, Exley Science Center
Organizers:
Matthew Horak, University of WisconsinStout horakm@uwstout.edu
Melanie Stein, Trinity College melanie.stein@trincoll.edu
Jennifer Taback, Bowdoin College jtaback@bowdoin.edu

3:00 p.m.
A useful odd finitely presented group.
Gilbert Baumslag*, The City College of New York
(10422076)

3:30 p.m.
Virtual Properties of Cyclically Pinched OneRelator Groups.
Gilbert Baumslag, City College, CUNY, New York
Benjamin Fine*, Fairfield University, Fairfield, CT 05430
Charles F. Miller, University of Melbourne, Melbourne, Australia
Douglas Troeger, City Collge, CUNY, New York
(10422090)

4:00 p.m.
Commutative transitive, conjugately separated abelian and restricted Gromov onerelator groups.
Gerhard Rosenberger*, Department of Mathematics, TU Dortmund
Benjamin Fine, Deparment of Mathematics, Fairfield University
Alexei Myasnikov, Deparment of Mathematics and Statistics, McGill University
Volkmar grosse Rebel, Department of Mathematics, TU Dortmund
(10422034)

4:30 p.m.
Generic properties of finitely presented groups.
Robert H Gilman*, Stevens Institute of Technology
(104220168)

5:00 p.m.
Computer experiments on the Torelli group.
Mladen Bestvina, University of Utah
KaiUwe Bux, University of Virginia
Dan Margalit*, Tufts University
(104220186)

Saturday October 11, 2008, 3:00 p.m.5:50 p.m.
Special Session on Real and Complex Dynamics of Rational Difference Equations with Applications, II
Room 136, Public Affairs Center
Organizers:
Mustafa Kulenovic, University of Rhode Island mkulenovic@mail.uri.edu
Gerasimos Ladas, University of Rhode Island gladas@math.uri.edu

3:00 p.m.
Monotonic, Periodic and Bounded Nature of NonNegative Solutions of NonAutonomous Rational Difference Equations.
Michael A Radin*, Rochester Institute of Technology
(10423986)

3:30 p.m.
Some Nonlinear Systems of Difference Equations with Applications.
Mihaela Predescu*, Bentley College
(104239211)

4:00 p.m.
Critically Periodic Cubic Polynomials.
Araceli Bonifant*, University of Rhode Island
John Milnor, Institute for Mathematical Sciences,
(104237204)

4:30 p.m.
Degree Growth of Birational Mappings.
Kyounghee Kim*, Florida State University
(10423274)

5:00 p.m.
Dynamics of simple folds in a plane.
Nikolai A Krylov*, Siena College
Edwin L Rogers, Siena College
(104240161)

5:30 p.m.
Control theory Concepts through Simulated experiments.
Channa N Navaratna*, Indiana University of Pennsylvania
Menaka B Navaratna, Florida Gulf Coast University
(104293219)

Saturday October 11, 2008, 3:00 p.m.3:55 p.m.
Session for Contributed Papers
Room 618, Exley Science Center

3:00 p.m.
The Diophantine equation $A^4+B^4+C^4=2D^n$ and beyond.
Susil Kumar Jena*, KIIT University, Bhubaneswar, Orissa, India
(104211200)

3:15 p.m.
Construction of Zerosum Sequences with Prescribed Zerosubsum Structure.
Michael A Freeze*, UNC Wilmington
(104213231)

3:30 p.m.
A Spectrumtype Preserver Problem on Pointed Lipschitz Algebras.
Antonio JimenezVargas, Departamento de Algebra y Analisis Matematico, Universidad de Almeria
Aaron Luttman*, Division of Mathematics and Computer Science, Clarkson University
Moises VillegasVallecillos, Departamento de Algebra y Analisis Matematico, Universidad de Almeria
(104246176)

3:45 p.m.
$r$commuting operators and Deddens' algebra.
Drissi Drissi*, Kuwait University
(10424708)

Saturday October 11, 2008, 6:00 p.m.7:30 p.m.
Wesleyan University Reception
Beckham Room, Fayerweather (next to Usdan Campus Center)
Sunday October 12, 2008

Sunday October 12, 2008, 8:00 a.m.12:00 p.m.
Meeting Registration
Lobby, Exley Science Center

Sunday October 12, 2008, 8:00 a.m.10:50 a.m.
Special Session on Model Theory and Its Applications, III
Room 121, Exley Science Center
Organizers:
Thomas Scanlon, University of California, Berkeley scanlon@math.berkeley.edu
Philip H. Scowcroft, Wesleyan University pscowcroft@wesleyan.edu
Carol S. Wood, Wesleyan University cwood@wesleyan.edu

8:00 a.m.
Model theory of probability spaces with an automorphism.
C. Ward Henson*, University of Illinois at UrbanaChampaign
(10420393)

8:30 a.m.
More decidable theories of nonprojectable $\mathit{l}$groups.
Brian Wynne*, Bard College at Simon's Rock
(10420388)

9:00 a.m.
Geometric ganzstellensaetze in theories of valued fields.
Deirdre Haskell*, McMaster University
Yoav Yaffe, Hebrew University
(10420387)

9:30 a.m.
Definability in characteristic $0$ henselian valued fields via the leading terms.
Joseph Flenner*, University of California, Berkeley
(104203171)

10:00 a.m.
Quantifier elimination in valued Ore modules.
Luc Bélair*, Université du Québec à Montréal (UQAM)
Françoise Point, FNRS  Université de MonsHainaut, Belgique.
(10420320)

10:30 a.m.
A differential Chevalley theorem.
Eric Rosen*, Massachusetts Institute of Technology
(104203133)

Sunday October 12, 2008, 8:00 a.m.10:50 a.m.
Special Session on LowDimensional Topology, III
Room 141, Exley Science Center
Organizers:
Constance Leidy, Wesleyan University cleidy@wesleyan.edu
Shelly Harvey, Rice University shelly@rice.edu

8:00 a.m.
Broken Lefschetz fibrations on smooth 4manifolds.
Denis Auroux*, MIT
(10425746)

8:30 a.m.
Higherorder genera of knots.
Peter D Horn*, Rice University
(10425798)

9:00 a.m.
The Transverse Invariant and Bindings of Open Books.
David Shea VelaVick*, University of Pennsylvania
(10425483)

9:30 a.m.
1relator grous and Heegaard splittings.
Joseph Masters*, SUNY Buffalo
(104257228)

10:00 a.m.
Polygons inscribed in simple closed curves.
Elizabeth Denne*, Smith College
Jason Cantarella, University of Georgia, Athens
John McCleary, Vassar College
(104257208)

10:30 a.m.
Cobordism of surface knots.
Kent Orr*, Indiana University
Vladimir Touraev, Indiana University
(104257221)

Sunday October 12, 2008, 8:00 a.m.10:50 a.m.
Special Session on Computability Theory and Effective Algebra, III
Room 638, Exley Science Center
Organizers:
Joseph S. Miller, University of Connecticut joseph.miller@math.uconn.edu
David Reed Solomon, University of Connecticut solomon@math.uconn.edu
Asher Kach, University of Connecticut kach@math.uconn.edu

8:00 a.m.
A Feiner Look at the Intermediate Degrees.
Denis R. Hirschfeldt*, University of Chicago
Asher M. Kach, University of Connecticut
Antonio Montalbán, University of Chicago
(104203115)

8:30 a.m.
Rank Homogeneous Trees and Turing Computable Embeddings.
Sara Quinn*, Northwestern University
E. Fokina, Kurt Goedel Research Center at the University of Vienna
J. F. Knight, University of Notre Dame
C. Maher, Colby College
A. Melnikov, Novosibirsk State University
(104203181)

9:00 a.m.
Intrinsically Complete Relations on Linear Orders.
Daniel D Turetsky*, University of Wisconsin, Madison
(104203167)

9:30 a.m.
When low information is no information.
Antonio Montalban*, University of Chicago
(10420347)

10:00 a.m.
Amalgamation Constructions and Recursive Model Theory.
Uri Andrews*, University of California, Berkeley
(104203202)

10:30 a.m.
Randomized Computation and Continuous Firstorder Logic.
Wesley Crain Calvert*, Murray State University
(10420361)

Sunday October 12, 2008, 8:00 a.m.10:45 a.m.
Special Session on Algebraic Geometry, III
Room 137, Exley Science Center
Organizers:
Eyal Markman, University of Massachusetts, Amherst markman@math.umass.edu
Jenia Tevelev, University of Massachusetts, Amherst tevelev@math.umass.edu

Sunday October 12, 2008, 8:00 a.m.12:00 p.m.
Book Sale and Exhibit
Room 139, Exley Science Center

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Algebraic Topology, III
Woodhead Lounge, Exley Science Center
Organizers:
Mark A. Hovey, Wesleyan University mhovey@wesleyan.edu
Kathryn Lesh, Union College leshk@union.edu

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Analysis on Metric Measure Spaces and on Fractals, III
Room 201, Exley Science Center
Organizers:
Piotr Hajlasz, University of Pittsburgh hajlasz@pitt.edu
Luke Rogers, University of Connecticut rogers@math.uconn.edu
Robert S. Strichartz, Cornell University str@math.cornell.edu
Alexander Teplyaev, University of Connecticut teplyaev@math.uconn.edu

8:30 a.m.
Discussion.

9:00 a.m.
Derivations on Metric Measure Spaces.
Jasun Gong*, University of Pittsburgh
(104228164)

9:30 a.m.
Lipschitz, Hölder and Sobolev surjections from Euclidean cubes.
Piotr Hajlasz, University of Pittsburgh
Jeremy Tyson*, University of Illinois
(10424695)

10:00 a.m.
Regularity of certain minimal surfaces in the subRiemannian Heisenberg group.
Luca Capogna*, University of Arkansas
(10423527)

10:30 a.m.
Density of Lipschitz maps in Sobolev spaces with Heisenberg group target.
Piotr Hajlasz*, University of Pittsburgh, Department of Mathematics
Jeremy Tyson, University of Illinois, Urbana, IL
(104246229)

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Convex and Integral Geometry, III
Room 58, Exley Science Center
Organizers:
Monika Ludwig, Polytechnic University of New York mludwig@poly.edu
Daniel Klain, University of Massachusetts, Lowell daniel_klain@uml.edu
Franz Schuster, Vienna University of Technology schuster@dmg.tuwien.ac.at

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Riemannian and Lorentzian Geometries, III
Room 422, Public Affairs Center
Organizers:
Ramesh Sharma, University of New Haven rsharma@newhaven.edu
Philippe Rukimbira, Florida International University rukim@fiu.edu

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Number Theory, III
Room 405, Exley Science Center
Organizers:
Wai Kiu Chan, Wesleyan University wkchan@wesleyan.edu
David Pollack, Wesleyan University dpollack@wesleyan.edu

8:30 a.m.
Representations of positive ternary quadratic forms.
ByeongKweon Oh*, Department of Applied Mathematics, Sejong University
(10421142)

9:00 a.m.
Siegel's lemma outside of a union of varieties.
Lenny Fukshansky*, Claremont McKenna College
(104211109)

9:30 a.m.
Multiplicative Properties and Parametrization of Integral Binary Quadratic Forms.
Andrew G. Earnest*, Southern Illinois University Carbondale
Robert W. Fitzgerald, Southern Illinois University Carbondale
(10421172)

10:00 a.m.
Lattices, sphere packings and energy minimization.
Abhinav Kumar*, Massachusetts Institute of Technology
Henry Cohn, Microsoft Research New England
(104211198)

10:30 a.m.
Intersections of polynomial orbits, and a dynamical MordellLang conjecture.
Dragos Ghioca, University of Lethbridge
Thomas J. Tucker, University of Rochester
Michael E. Zieve*, Rutgers University
(104211118)

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Geometric Function Theory and Geometry, III
Room 421, Public Affairs Center
Organizers:
Petra BonfertTaylor, Wesleyan University pbonfert@wesleyan.edu
Katsuhiko Matsuzaki, Okayama University matsuzak@math.okayamau.ac.jp
Edward C. Taylor, Wesleyan University ectaylor@wesleyan.edu

8:30 a.m.
Some extensions of holomorphic motions.
Sudeb Mitra*, Queens College of the City University of New York
Hiroshige Shiga, Department of Mathematics, Tokyo Institute Of Technology, Tokyo, Japan
(10423277)

9:00 a.m.
Geometric Integration Theory in Banach Spaces.
Marie A. Snipes*, University of Michigan
(104228125)

9:30 a.m.
An Effective Compactness Theorem for Coxeter Groups.
Yvonne Lai*, University of Michigan
(104251154)

10:00 a.m.
On injectivity of quasiregular mappings.
Tadeusz Iwaniec, Syracuse University
Leonid V Kovalev*, Syracuse University
Jani Onninen, Syracuse University
(10423044)

10:30 a.m.
PositiveDefiniteness of the WeilPetersson extension on Quasifuchsian Space.
Martin J Bridgeman*, Boston College
(104251132)

Sunday October 12, 2008, 8:30 a.m.10:50 a.m.
Special Session on Geometric Group Theory and Topology, III
Room 109, Exley Science Center
Organizers:
Matthew Horak, University of WisconsinStout horakm@uwstout.edu
Melanie Stein, Trinity College melanie.stein@trincoll.edu
Jennifer Taback, Bowdoin College jtaback@bowdoin.edu

8:30 a.m.
Quantum invariants of random 3manifolds.
Nathan Dunfield, University of Illinois at UrbanaChampaign
Helen M. Wong*, Bowdoin College
(104257180)

9:00 a.m.
Large scale geometry of certain solvable Lie groups.
Tullia Dymarz*, Yale University
(104222184)

9:30 a.m.
Intersections in Metabelian Groups.
Gilbert Baumslag, Distinguished Professor of Mathematics and Computer Science, The City College of New York, CUNY
Charles F. Miller, Emeritus Professor of Mathematics, University of Melbourne
Gretchen Ostheimer*, Associate Professor of Computer Science, Hofstra University
(10422075)

10:00 a.m.
Centralizer theorem for graph products of primary indecomposable cyclic groups.
Mauricio A. Gutierrez*, Tufts University, Medford, MA 02155
(10422012)

10:30 a.m.
Generalizing the lamplighter group.
Andrew Dunlap Warshall*, Yale University
(104220107)

Sunday October 12, 2008, 9:00 a.m.10:50 a.m.
Special Session on History of Mathematics, III
Room 309, Exley Science Center
Organizers:
Robert E. Bradley, Adelphi University bradley@adelphi.edu
Lawrence A. D'Antonio, Ramapo College of New Jersey ldant@ramapo.edu
Lee J. Stemkoski, Adelphi University stemkoski@adelphi.edu

Sunday October 12, 2008, 9:00 a.m.10:50 a.m.
Special Session on Complex Geometry and Partial Differential Equations, III
Room 104, Public Affairs Center
Organizers:
Jacob Sturm, Rutgers University sturm@andromeda.rutgers.edu
Jian Song, Rutgers University jiansong@math.rutgers.edu

Sunday October 12, 2008, 11:10 a.m.12:00 p.m.
Invited Address
Definitions of quasiconformality.
Room 150, Exley Science Center
Pekka Koskela*, University of Jyväskylän
(10423001)

Sunday October 12, 2008, 2:00 p.m.2:50 p.m.
Invited Address
Polynomial dynamics.
Room 150, Exley Science Center
Thomas Warren Scanlon*, University of California Berkeley
(10421404)

Sunday October 12, 2008, 3:00 p.m.4:50 p.m.
Special Session on Algebraic Topology, IV
Woodhead Lounge, Exley Science Center
Organizers:
Mark A. Hovey, Wesleyan University mhovey@wesleyan.edu
Kathryn Lesh, Union College leshk@union.edu

Sunday October 12, 2008, 3:00 p.m.5:50 p.m.
Special Session on Model Theory and Its Applications, IV
Room 121, Exley Science Center
Organizers:
Thomas Scanlon, University of California, Berkeley scanlon@math.berkeley.edu
Philip H. Scowcroft, Wesleyan University pscowcroft@wesleyan.edu
Carol S. Wood, Wesleyan University cwood@wesleyan.edu

3:00 p.m.
Some tractable trivial minimal sets in ACFA.
Alice Medvedev*, University of Illinois at Chicago
Thomas Scanlon, University of California, Berkeley
(104203178)

3:30 p.m.
Tannakian Categories and Valuation Rings.
Meghan Anderson*, UC Berkeley
(104203218)

4:00 p.m.
Definable subcategories of modules.
Philipp Rothmaler*, The City University of New York
(10421648)

4:30 p.m.
Schemic Grothendieck rings.
Hans Schoutens*, City University of New York
(10421462)

5:00 p.m.
Remarks on Zilber's pseudoexponentiation.
David Marker*, University of Illinois at Chicago
(104203150)

5:30 p.m.
Stable, $\aleph_0$categorical Algebraic Structures.
Paul Baginski*, University of California, Berkeley
(104203239)

Sunday October 12, 2008, 3:00 p.m.4:50 p.m.
Special Session on LowDimensional Topology, IV
Room 141, Exley Science Center
Organizers:
Constance Leidy, Wesleyan University cleidy@wesleyan.edu
Shelly Harvey, Rice University shelly@rice.edu

3:00 p.m.
BieriNeumannStrebelRenz invariants and homology jumping loci.
Stefan Papadima, Institute of Mathematics of the Romanian Academy, Bucharest, Romania
Alexander I. Suciu*, Department of Mathematics, Northeastern University
(10425781)

3:30 p.m.
Slices of Planar Lagrangians.
Phil Eiseman, Haverford College
Jonathan D. Lima, Haverford College
Joshua M. Sabloff, Haverford College
Lisa Traynor*, Bryn Mawr College
(10425766)

4:00 p.m.
Topological 4manifolds with infinite cyclic fundamental group.
Paul Melvin*, Bryn Mawr College
S. Friedl, University of Warwick
I. Hambleton, McMaster University
P. Teichner, University of California, Berkeley
(104257223)

4:30 p.m.
Near forcefree magnetic fields, contact structures, open book decompositions, and HeegaardFloer homology.
P. Robert Kotiuga*, Boston University, ECE Dept.
(104278197)

Sunday October 12, 2008, 3:00 p.m.3:50 p.m.
Special Session on Computability Theory and Effective Algebra, IV
Room 638, Exley Science Center
Organizers:
Joseph S. Miller, University of Connecticut joseph.miller@math.uconn.edu
David Reed Solomon, University of Connecticut solomon@math.uconn.edu
Asher Kach, University of Connecticut kach@math.uconn.edu

Sunday October 12, 2008, 3:00 p.m.5:20 p.m.
Special Session on Analysis on Metric Measure Spaces and on Fractals, IV
Room 201, Exley Science Center
Organizers:
Piotr Hajlasz, University of Pittsburgh hajlasz@pitt.edu
Luke Rogers, University of Connecticut rogers@math.uconn.edu
Robert S. Strichartz, Cornell University str@math.cornell.edu
Alexander Teplyaev, University of Connecticut teplyaev@math.uconn.edu

3:00 p.m.
Homotopies of eigenfunctions, and the spectrum of the Laplacian on the Sierpinski carpet.
Steven M. Heilman*, Cornell University
Robert S. Strichartz, Cornell University
(104246175)

3:30 p.m.
Approximation of the spectrum of the Laplacian operator on some Laakso spaces.
Kevin Romeo*, University of Connecticut
(104241113)

4:00 p.m.
Spectral Operators on Vicsek Sets.
Sarah Constantin, Princeton University
Miles Wheeler*, Cornell University
(10423571)

4:30 p.m.
Laplacians on Julia Sets.
Taryn C. Flock*, Yale University
Robert S. Strichartz, Cornell University
(104228110)

5:00 p.m.
Spectral Decimation on the mBranch Tree.
Daniel J. Ford*, Providence College
Benjamin Steinhurst, University of Connecticut
(104247114)

Sunday October 12, 2008, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Geometry, IV
Room 137, Exley Science Center
Organizers:
Eyal Markman, University of Massachusetts, Amherst markman@math.umass.edu
Jenia Tevelev, University of Massachusetts, Amherst tevelev@math.umass.edu

Sunday October 12, 2008, 3:00 p.m.5:35 p.m.
Special Session on Complex Geometry and Partial Differential Equations, IV
Room 104, Public Affairs Center
Organizers:
Jacob Sturm, Rutgers University sturm@andromeda.rutgers.edu
Jian Song, Rutgers University jiansong@math.rutgers.edu

Sunday October 12, 2008, 3:00 p.m.4:50 p.m.
Special Session on Number Theory, IV
Room 405, Exley Science Center
Organizers:
Wai Kiu Chan, Wesleyan University wkchan@wesleyan.edu
David Pollack, Wesleyan University dpollack@wesleyan.edu
Inquiries: meet@ams.org