Skip to Main Content

AMS Sectional Meeting Full Program

Current as of Tuesday, April 12, 2005 15:09:29


Program  |  Deadlines  |  Inquiries:  meet@ams.org

1996 Spring Eastern Sectional Meeting
New York, NY, April 13-14, 1996
Meeting #910

Associate secretaries:
Lesley M Sibner, AMS lsibner@duke.poly.edu

Saturday April 13, 1996

  • Saturday April 13, 1996, 8:00 a.m.-4:00 p.m.
    Book Sale and Electronic Products
  • Saturday April 13, 1996, 8:00 a.m.-4:00 p.m.
    Meetings Registration

    Lobby, Courant Institute Building
  • Saturday April 13, 1996, 8:30 a.m.-10:50 a.m.
    Special Session on Hyperbolic Geometry and Discrete Groups, I

    Room 632, Shimkin Hall
    Organizers:
    Jane P. Gilman, Rutgers University, Newark

    • 8:30 a.m.
      A discreteness criteria with applications to small volumes.
      Frederick W. Gehring, University of Michigan, Ann Arbor
      Colin Maclachlan, University of Aberdeen, United Kingdom
      Gaven John Martin, University of Auckland, New Zealand
      Alan W. Reid*, University of Texas, Austin
      (910-57-92)
    • 9:00 a.m.
      Invariants for $n$-dimensional M\"obius groups.
      Chun Cao, University of Michigan, Ann Arbor
      Peter L. Waterman*, Northern Illinois University
      (910-30-118)
    • 9:30 a.m.
      Discreteness conditions for $n$-dimensional M\"obius groups.
      Chun Cao*, University of Michigan, Ann Arbor
      Peter L. Waterman, Northern Illinois University
      (910-30-121)
    • 10:00 a.m.
      Discrete subgroups of $SL_n({\Bbb R})$ generated by lattices in opposite horospherical subgroups.
      Hee Oh*, Yale University
      (910-30-140)
    • 10:30 a.m.
      Are homotopy hyperbolic $3$-manifolds hyperbolic?
      Robert Meyerhoff*, Boston College
      David Gabai, California Institute of Technology
      Nathaniel John Thurston, University of California, Berkeley
      (910-57-81)
  • Saturday April 13, 1996, 8:30 a.m.-10:20 a.m.
    Special Session on Gauge Field Theory, I

    Room 626, Shimkin Hall
    Organizers:
    Janet C. Talvacchia, Swarthmore College
    Yisong Yang, Polytechnic University

    • 8:30 a.m.
      Nonquadratic Yang-Mills energies.
      Thomas H. Otway*, Yeshiva University
      (910-35-32)
    • 9:00 a.m.
      Existence of hyperbolic monopoles.
      Lesley M. Sibner*, Polytechnic University
      Robert J. Sibner, Brooklyn College, City University of New York
      (910-35-28)
    • 9:30 a.m.
      A Mayer-Vietoris principle for monopoles.
      Eugene A. Durenard*, Saloman Brothers, United Kingdom
      (910-58-86)
    • 10:00 a.m.
      Renormalized energy for Ginzburg-Landau vortices on closed surfaces.
      Jie Qing*, Columbia University
      (910-53-71)
  • Saturday April 13, 1996, 8:30 a.m.-10:20 a.m.
    Special Session on Stochastic Models in Mathematical Finance, I

    Room 109, Warren Weaver Hall
    Organizers:
    Thaleia Zariphopoulou, University of Wisconsin, Madison

    • 8:30 a.m.
      Efficient trees for option valuation.
      David C. Heath*, Cornell University
      (910-35-16)
    • 9:00 a.m.
      Optimal investment processes for utility maximization problems with restricted information.
      Peter Lakner*, Courant Institute of Mathematical Sciences, New York University
      (910-35-08)
    • 9:30 a.m.
      Optimal consumption and investment when investment opportunities are better for the rich than for the poor.
      Hyeng Keun Koo*, University of Wisconsin, Madison
      Thaleia Zariphopoulou, University of Wisconsin, Madison
      (910-60-43)
    • 10:00 a.m.
      Some probabilistic approaches to pricing and hedging multi-assets and path-dependent options.
      Helyette E. Geman*, ESSEC Finance Department, Cergy-Pontoise, France
      (910-60-46)
  • Saturday April 13, 1996, 8:40 a.m.-10:50 a.m.
    Special Session on Differential Algebra, I

    Room 634, Shimkin Hall
    Organizers:
    Phyllis J. Cassidy, Smith College
    William F. Keigher, Rutgers University, Newark
    Michael F. Singer, North Carolina State University

    • 8:40 a.m.
      Lie algebras of derivation operators in the context of differential algebra.
      Phyllis J. Cassidy*, Smith College
      (910-12-111)
    • 9:15 a.m.
      The symbolic computation of differential invariants using trees.
      Robert Grossman*, University of Illinois, Chicago
      (910-17-123)
    • 9:50 a.m.
      Differentally homogenous differential polynomials.
      Georg Martin Reinhart*, Wellesley College
      (910-12-79)
    • 10:25 a.m.
      An arithmetic analogue of differential algebra.
      Alexandru Buium*, University of New Mexico
      (910-11-39)
  • Saturday April 13, 1996, 9:00 a.m.-10:50 a.m.
    Special Session on Partial Differential Equations, I

    Room 101, Warren Weaver Hall
    Organizers:
    Patricia E. Bauman, Purdue University, West Lafayette
    Fanghua Lin, Courant Institute of Mathematical Sciences, New York University
    Peter J. Sternberg, Indiana University, Bloomington

    • 9:00 a.m.
      Some inequalities for second order elliptic equations and applications.
      Louis Nirenberg*, Courant Institute of Mathematical Sciences, New York University
      (910-35-108)
    • 9:40 a.m.
      Fast/slow diffusion and nonlocal geometric motion.
      Lawrence Craig Evans, University of California, Berkeley
      Mikhail Feldman*, University of Pennsylvania
      Ronald F. Gariepy, University of Kentucky
      (910-35-52)
    • 10:20 a.m.
      The singular limit of a vector-valued reaction-diffusion process.
      Lia Bronsard*, McMaster University
      Barbara Stoth, University of Bonn, Germany
      (910-35-36)
  • Saturday April 13, 1996, 9:00 a.m.-10:50 a.m.
    Special Session on Global Riemannian Geometry, I

    Room 102, Warren Weaver Hall
    Organizers:
    Tobias H. Colding, Courant Institute of Mathematical Sciences, New York University
    Claude R. LeBrun, State University of New York, Stony Brook
    Santiago R. Simanca, Polytechnic University

    • 9:00 a.m.
      Sufficiently collapsed manifolds with bounded curvature and diameter have minimal volume zero.
      Jeff Cheeger*, Courant Institute of Mathematical Sciences, New York University
      (910-53-73)
    • 9:30 a.m.
      Minimal volume and finiteness theorems for manifolds with Gromov's hyberbolicity.
      Jianguo Cao*, Cornell University
      (910-53-24)
    • 10:00 a.m.
      On function theory on spaces with a lower Ricci curvature bound. {\rm II}.
      Tobias H. Colding, Courant Institute of Mathematical Sciences, New York University
      William P. Minicozzi, II*, Johns Hopkins University
      (910-58-78)
    • 10:30 a.m.
      Metric constraints on exotic spheres via Alexandrov geometry.
      K. Grove, University of Maryland, College Park
      Frederick H. Wilhelm, Jr.*, State University of New York, Stony Brook
      (910-53-50)
  • Saturday April 13, 1996, 9:00 a.m.-10:50 a.m.
    Special Session on Number Theory, I

    Room 613, Warren Weaver Hall
    Organizers:
    William D. Duke, Rutgers University, New Brunswick
    Ze'ev Rudnick, Tel Aviv University, Israel

    • 9:00 a.m.
      Estimates for Artin $L$-functions of degree two.
      John B. Friedlander, University of Toronto
      Henryk Iwaniec*, Rutgers University, New Brunswick
      William D. Duke, Rutgers University, New Brunswick
      (910-11-97)
    • 9:40 a.m.
      Bounds for the Tate-Shafarevich group.
      Dorian Goldfeld*, Columbia University
      Daniel B. Lieman, Columbia University
      (910-11-136)
    • 10:20 a.m.
      On the variation of argument of Maass-Hecke $L$-functions.
      Dennis A. Hejhal, Uppsala University, Sweden
      Wenzhi Luo*, Princeton University
      (910-11-31)
  • Saturday April 13, 1996, 9:00 a.m.-10:30 a.m.
    Panel Discussion
    The Activities of the International Mathematical Union and Plans for the International Congress of Mathematicans in 1998.

    Room 1302, Warren Weaver Hall
    Panelists:
    David Mumford, President, IMU
    Jacob Palis, Secetary, IMU
    Phillip A. Griffiths, Chairman, Program Committee, ICM 98
    Martin Groetschel, President, Organizing Committee, ICM 98
    Jeremy Kilpatrick, Vice President, ICMI
    Herbert Clemens, Member Executive Committee, CDE
  • Saturday April 13, 1996, 9:30 a.m.-10:50 a.m.
    Special Session on Topological Methods, I

    Room 813, Warren Weaver Hall
    Organizers:
    Charles R. Traina, Saint John's University
    Lawrence Narici, Saint John's University
    Edward Beckenstein, Saint John's University

    • 9:30 a.m.
      A new look at biseparating maps, {\rm I}.
      Melvin Henriksen*, Harvey Mudd College
      (910-06-55)
    • 10:10 a.m.
      Informal discussion
  • Saturday April 13, 1996, 11:00 a.m.-11:50 a.m.
    Invited Address

    Assessing the empirical performance of continuous time methods in finance.
    Room 109, Warren Weaver Hall
    Jose Scheinkman*, University of Chicago
    (910-90-03)
  • Saturday April 13, 1996, 1:30 p.m.-2:20 p.m.
    Invited Address

    On $4$-dimensional Einstein manifolds.
    Room 109, Warren Weaver Hall
    Claude R. LeBrun*, State University of New York, Stony Brook
    (910-53-01)
  • Saturday April 13, 1996, 2:30 p.m.-5:00 p.m.
    Special Session on Partial Differential Equations, II

    Room 101, Warren Weaver Hall
    Organizers:
    Patricia E. Bauman, Purdue University, West Lafayette
    Fanghua Lin, Courant Institute of Mathematical Sciences, New York University
    Peter J. Sternberg, Indiana University, Bloomington

    • 2:30 p.m.
      Dynamics of Ginzburg-Landau vortices.
      H. Mete Soner*, Carnegie Mellon University
      Robert Jerrard, Carnegie Mellon University
      (910-35-15)
    • 3:10 p.m.
      Constraints on formation of singularities for the small disturbance transonic flow equations.
      Irene Martinez Gamba*, Courant Institute of Mathematical Sciences, New York University
      (910-35-128)
    • 3:50 p.m.
      Travelling fronts in cylinders and their stability.
      Jerrold W. Bebernes, University of Colorado, Boulder
      Congming Li, University of Colorado, Boulder
      Yi Li*, University of Rochester
      (910-35-93)
    • 4:30 p.m.
      Symmetry of solutions of non-linear PDE.
      Sagun Chanillo*, Rutgers University, New Brunswick
      (910-35-29)
  • Saturday April 13, 1996, 2:30 p.m.-4:00 p.m.
    Special Session on Global Riemannian Geometry, II

    Room 102, Warren Weaver Hall
    Organizers:
    Tobias H. Colding, Courant Institute of Mathematical Sciences, New York University
    Claude R. LeBrun, State University of New York, Stony Brook
    Santiago R. Simanca, Polytechnic University

    • 2:30 p.m.
      On fundamental groups of manifolds of positive sectional curvature.
      Xiaochun Rong*, University of Chicago
      (910-53-14)
    • 3:00 p.m.
      Manifolds of positive scalar curvature and the Baum-Connes conjecture.
      Stephan A. Stolz*, University of Notre Dame
      (910-53-122)
    • 3:30 p.m.
      Positively curved metrics of cohomogeneity one.
      Wolfgang Ziller*, University of Pennsylvania
      K. Grove, University of Maryland, College Park
      (910-53-137)
    • 4:00 p.m.
      Spectral asymptotics and the geometry of degenerating hyperbolic three manifolds.
      J. Dodziuk*, Queens College, City University of New York
      Jay A. Jorgenson, Yale University
      (910-58-38)
  • Saturday April 13, 1996, 2:30 p.m.-5:00 p.m.
    Special Session on Number Theory, II

    Room 613, Warren Weaver Hall
    Organizers:
    William D. Duke, Rutgers University, New Brunswick
    Ze'ev Rudnick, Tel Aviv University, Israel

    • 2:30 p.m.
      Groups of functional equations for Dirichlet series in two variables.
      Daniel Willis Bump, Stanford University
      Solomon Friedberg, University of California at San Diego, La Jolla
      Jeffrey Hoffstein*, Brown University
      (910-11-53)
    • 3:10 p.m.
      On the distribution of roots of quadratic congruences.
      Arpad Toth*, Rutgers University, New Brunswick
      (910-11-74)
    • 3:50 p.m.
      Expansion of modular forms about special points.
      Fernando Rodriguez Villegas*, Princeton University
      (910-11-60)
    • 4:30 p.m.
      Special values of twisted symmetric square $L$-functions.
      Jeffrey Stopple*, University of California, Santa Barbara
      (910-11-25)
  • Saturday April 13, 1996, 2:30 p.m.-4:50 p.m.
    Special Session on Hyperbolic Geometry and Discrete Groups, II

    Room 632, Shimkin Hall
    Organizers:
    Jane P. Gilman, Rutgers University, Newark

    • 2:30 p.m.
      Hyperbolic $3$-manifolds with non-intersecting closed geodesics.
      Ara S. Basmajian*, University of Oklahoma
      Scott A. Wolpert, University of Maryland, College Park
      (910-30-94)
    • 3:00 p.m.
      $3$-parabolic Fuchsian groups.
      Todd A. Drumm*, University of Pennsylvania
      (910-51-119)
    • 3:30 p.m.
      Extended bisectors in complex hyperbolic and projective space.
      William Mark Goldman*, University of Maryland, College Park
      (910-53-66)
    • 4:00 p.m.
      Geometrical finiteness for hyperbolic orbifolds.
      Emily Hamilton*, Rice University
      (910-57-69)
    • 4:30 p.m.
      Shuffling homotopy equivalences and limits of Kleinian groups.
      James W. Anderson, University of Southampton, United Kingdom
      Richard D. Canary*, University of Michigan, Ann Arbor
      Darryl McCullough, University of Oklahoma
      (910-57-133)
  • Saturday April 13, 1996, 2:30 p.m.-4:50 p.m.
    Special Session on Gauge Field Theory, II

    Room 626, Shimkin Hall
    Organizers:
    Janet C. Talvacchia, Swarthmore College
    Yisong Yang, Polytechnic University

    • 2:30 p.m.
      Torus splittings and spectral flow of the twisted signature operator.
      Christopher M. Herald*, McMaster University
      (910-53-63)
    • 3:00 p.m.
      Euler characteristics of moduli spaces of instantons over four sphere.
      Youliang Tian*, Courant Institute of Mathematical Sciences, New York University
      (910-53-62)
    • 3:30 p.m.
      Multiple condensate solutions for the Chern-Simon-Higgs theory.
      Gabriella Tarantello*, Universit'a di Roma Tor Vergata, Roma, Italy
      (910-35-47)
    • 4:00 p.m.
      Instantons and the information metric.
      David Groisser*, University of Florida
      Michael K. Murray, University of Adelaide, Australia
      (910-53-95)
    • 4:30 p.m.
      Existence of multi-vortices solutions for a self-dual Maxwell-Chern-Simons-Higgs system.
      Dongho Chae*, Seoul National University, Seoul, Korea
      Namkwon Kim, Postech, Korea
      (910-53-138)
  • Saturday April 13, 1996, 2:30 p.m.-5:00 p.m.
    Special Session on Topological Methods, II

    Room 813, Warren Weaver Hall
    Organizers:
    Charles R. Traina, Saint John's University
    Lawrence Narici, Saint John's University
    Edward Beckenstein, Saint John's University

    • 2:30 p.m.
      How many $\Omega$-bounded subgroups?
      W. Wistar Comfort*, Wesleyan University
      Jan van Mill, Vrije University,
      (910-22-67)
    • 3:00 p.m.
      Informal discussion
    • 3:50 p.m.
      Transfinite induction with control.
      Alan Dow*, York University
      (910-54-112)
    • 4:30 p.m.
      Intersections of Fr\'echet-Schwartz spaces and their duals.
      Jose Bonet*, Universidad Polytechnica de Valencia, Spain
      (910-99-141)
  • Saturday April 13, 1996, 2:30 p.m.-4:20 p.m.
    Special Session on Stochastic Models in Mathematical Finance, II

    Room 109, Warren Weaver Hall
    Organizers:
    Thaleia Zariphopoulou, University of Wisconsin, Madison

    • 2:30 p.m.
      Backward stochastic differential equations, finance and optimization.
      Nicole El Karoui*, University of Paris VI, France
      Shinge Peng, Shandong University, People's Republic of China
      Marie Claire Quenez, University de Marne la Vallee, France
      (910-60-89)
    • 3:00 p.m.
      A compactness principle for bounded sequences of martingales with applications to mathematical finance.
      F. Delbaen, Vrije University of Brussels, Belgium
      W. Schachermayer*, Vienna University, Austria
      (910-35-07)
    • 3:30 p.m.
      Modeling and computation of international general financial equilibrium in the presence of transaction costs and price policy interventions: A variational inequality approach.
      Anna B. Nagurney*, University of Massachusetts, Amherst
      Stavros Siokos, University of Massachusetts, Amherst
      (910-90-44)
    • 4:00 p.m.
      A new approach to analytic valuation in the Black Scholes Model.
      Peter P. Carr*, Cornell University
      (910-60-42)
  • Saturday April 13, 1996, 2:30 p.m.-4:40 p.m.
    Special Session on Differential Algebra, II

    Room 634, Shimkin Hall
    Organizers:
    Phyllis J. Cassidy, Smith College
    William F. Keigher, Rutgers University, Newark
    Michael F. Singer, North Carolina State University

    • 2:30 p.m.
      Differential resultants revisited.
      Emma Previato*, Boston University
      (910-14-102)
    • 2:50 p.m.
      The model theory of differential fields of finite characteristic.
      Carol S. Wood*, Wesleyan University
      (910-14-135)
    • 3:10 p.m.
      Model theory and differential algebra.
      Anand Pillay*, University of Notre Dame
      (910-14-99)
    • 3:30 p.m.
      Invariant derivations with no new constants.
      Andy R. Magid*, University of Oklahoma
      Lourdes Juan, University of Oklahoma
      (910-12-77)
  • Saturday April 13, 1996, 2:30 p.m.-5:10 p.m.
    Contributed Paper Session, I

    Room 1013, Warren Weaver Hall

    • 2:30 p.m.
      Giordano cubes.
      Joseph Arkin*, United States Military Academy
      David C. Arney, United States Military Academy
      Rickey A. Kolb, United States Military Academy
      (910-11-10)
    • 2:45 p.m.
      A necessary and sufficient condition for lifting the hyperelliptic involution.
      Peter Turbek*, Purdue University, Calmuet
      (910-30-27)
    • 3:00 p.m.
      Relationships between various outer measures associated with lattice measures.
      Peter D. Stratigos*, Long Island University, Brooklyn Center
      (910-28-33)
    • 3:15 p.m.
      Outer measures and measurable sets.
      Carmen Doina Vlad*, Pace University, New York
      (910-28-34)
    • 3:30 p.m.
      G.C.D. and L.C.M. of two entire functions.
      Chung-Chun Yang*, Hong Kong University of Science & Technology, Hong Kong
      (910-30-05)
    • 3:45 p.m.
      An integral operator for analytic solutions of the wave equation.
      Allan Fryant*, Greensboro College
      Murali Krishna Vemuri, University of Chicago
      (910-35-19)
    • 4:00 p.m.
      $L^p$-gradient estimates for viscosity solutions of fully nonlinear, uniformly elliptic equations.
      Andrzej Janusz Swiech*, Georgia Institute of Technology
      (910-35-26)
    • 4:15 p.m.
      The binomial coefficients and beyond.
      Larry Ericksen*, Millville, New Jersey
      (910-40-18)
    • 4:30 p.m.
      Powers of absolutely convergent Fourier series.
      Bogdan Baishanski*, Ohio State University, Columbus
      Michael Snell, Ohio State University, Columbus
      (910-41-132)
    • 4:45 p.m.
      Disintegration of measures and a variational problem governed by a differential inclusion.
      Toru Maruyama*, University of California, Berkeley and Keio University, Japan
      (910-49-56)
    • 5:00 p.m.
      Non-orthogonal wavelet approximation with rates of deterministic signals.
      George A. Anastassiou*, The University of Memphis
      Stamatis Cambanis, The University of North Carolina, Chapel Hill
      (910-99-144)
  • Saturday April 13, 1996, 2:30 p.m.-4:30 p.m.
    International Forum
    Perspectives on Doing Mathematics in the Electronic Age.

    Room 1302, Warren Weaver Hall
    Panelists:
    John H. Ewing, American Mathematical Society
    Martin Groetschel, Konrad-Zuse-Zentrum fuer Informationstechnik
    Joachim Heinze, Springer-Verlag
    Andrew M. Odlyzko, AT&T Research
  • Saturday April 13, 1996, 7:00 p.m.-11:00 p.m.
    Council

    Majestic Music Box, New York Marriott Marquis

Sunday April 14, 1996

  • Sunday April 14, 1996, 8:00 a.m.-12:00 p.m.
    Book Sale and Electronic Products
  • Sunday April 14, 1996, 8:30 a.m.-10:50 a.m.
    Special Session on Hyperbolic Geometry and Discrete Groups, III

    Room 101, Warren Weaver Hall
    Organizers:
    Jane P. Gilman, Rutgers University, Newark

    • 8:30 a.m.
      Hyperbolicity in the complex of curves.
      Yair N. Minsky*, State University of New York, Stony Brook
      Howard A. Masur, University of Illinois, Chicago
      (910-57-120)
    • 9:00 a.m.
      Parametrization of Teichm\"uller space by geodesic length functions.
      Feng Luo*, Rutgers University, New Brunswick
      (910-30-84)
    • 9:30 a.m.
      An algorithm to decide the discreteness of an explicit finitely generated elementary subgroup of $SL_2(\overline {\Bbb Q}_{\rm{alg}})\subset SL_2(\Bbb C)$.
      Robert F. Riley*, State University of New York, Binghamton
      (910-30-104)
    • 10:00 a.m.
      Pleating varieties in quasi-Fuchsian space.
      Linda Keen*, Herbert H. Lehman College, City University of New York
      Caroline Series, University of Warwick, United Kingdom
      (910-30-96)
    • 10:30 a.m.
      Iteration on the Bers slice.
      Jeffrey F. Brock*, University of California, Berkeley
      (910-99-143)
  • Sunday April 14, 1996, 8:30 a.m.-10:20 a.m.
    Special Session on Gauge Field Theory, III

    Room 626, Shimkin Hall
    Organizers:
    Janet C. Talvacchia, Swarthmore College
    Yisong Yang, Polytechnic University

    • 8:30 a.m.
      Mass degeneracies in self-dual Chern-Simons theories.
      Gerald Dunne*, University of Connecticut, Storrs
      (910-81-70)
    • 9:00 a.m.
      Hawking radiation and Einstein-Yang/Mills equations.
      Joel A. Smoller*, University of Michigan, Ann Arbor
      Arthur G. Wasserman, University of Michigan, Ann Arbor
      (910-83-59)
    • 9:30 a.m.
      Gauge theories of two-dimensional gravity.
      Roman Jackiw*, Massachusetts Institute of Technology
      (910-81-57)
    • 10:00 a.m.
      Yang-Mills hierarchies in even dimensions and their descendants.
      D. H. Tchrakian*, Saint Patrick's College, Ireland
      (910-81-113)
  • Sunday April 14, 1996, 8:30 a.m.-10:20 a.m.
    Special Session on Stochastic Models in Mathematical Finance, III

    Room 109, Warren Weaver Hall
    Organizers:
    Thaleia Zariphopoulou, University of Wisconsin, Madison

    • 8:30 a.m.
      Managing market risk and volatility risk: A new approach using dynamic programming and portfolio optimization.
      Marco M. Avellaneda*, Courant Institute of Mathematical Sciences, New York University
      (910-35-11)
    • 9:00 a.m.
      General properties of option prices.
      Bruce Grundy*, University of Pennsylvania
      (910-90-45)
    • 9:30 a.m.
      Optimization models with stochastic volatility.
      Mohsen Mazaheri*, University of Wisconsin, Madison
      Thaleia Zariphopoulou, University of Wisconsin, Madison
      (910-60-40)
    • 10:00 a.m.
      Using nonstandard analysis methods to analyze non-standard asset price models.
      Walter Willinger*, Bellcore, Morristown, New Jersey
      (910-60-13)
  • Sunday April 14, 1996, 8:40 a.m.-10:50 a.m.
    Special Session on Differential Algebra, III

    Room 634, Shimkin Hall
    Organizers:
    Phyllis J. Cassidy, Smith College
    William F. Keigher, Rutgers University, Newark
    Michael F. Singer, North Carolina State University

    • 8:40 a.m.
      Differential modules defined by systems of equations.
      Alan C. Adolphson*, Oklahoma State University, Stillwater
      Steven Sperber, University of Minnesota, Minneapolis
      (910-14-129)
    • 9:15 a.m.
      Galois groups of order four linear differential equations.
      Sabrina A. Hessinger*, North Carolina State University
      (910-12-110)
    • 9:50 a.m.
      Computing the genus of a curve.
      Barry Trager*, IBM T. J. Watson Research Center, Yorktown Heights, New York
      (910-14-134)
    • 10:25 a.m.
      Hurwitz series as formal functions.
      William F. Keigher*, Rutgers University, Newark
      Frank Leon Pritchard, Rutgers University, Newark
      (910-13-100)
  • Sunday April 14, 1996, 9:00 a.m.-10:50 a.m.
    Special Session on Partial Differential Equations, III

    Room 1302, Warren Weaver Hall
    Organizers:
    Patricia E. Bauman, Purdue University, West Lafayette
    Fanghua Lin, Courant Institute of Mathematical Sciences, New York University
    Peter J. Sternberg, Indiana University, Bloomington

    • 9:00 a.m.
      Monotonicity formulas for solutions of equations in adjacent domains.
      Luis A. Caffarelli*, Courant Institute of Mathematical Sciences, New York University
      (910-35-106)
    • 9:40 a.m.
      Gauged harmonic maps from $R^2$ to $S^2$.
      Yisong Yang*, Polytechnic University
      (910-35-87)
    • 10:20 a.m.
      On the existence and uniqueness of constant mean curvature hypersurfaces in hyperbolic space.
      Barbara Nelli, University of Paris VII, France
      Joel Spruck*, Johns Hopkins University
      (910-35-131)
  • Sunday April 14, 1996, 9:00 a.m.-10:50 a.m.
    Special Session on Global Riemannian Geometry, III

    Room 102, Warren Weaver Hall
    Organizers:
    Tobias H. Colding, Courant Institute of Mathematical Sciences, New York University
    Claude R. LeBrun, State University of New York, Stony Brook
    Santiago R. Simanca, Polytechnic University

    • 9:00 a.m.
      The geometry of the first Stekloff eigenvalue.
      Jose F. Escobar*, Cornell University
      (910-53-76)
    • 9:30 a.m.
      Gluing constructions for noncompact geometric problems.
      Daniel Pollack*, University of Chicago
      (910-58-98)
    • 10:00 a.m.
      Glueing constructions of minimal surfaces.
      Nicolaos Kapouleas*, Brown University
      (910-53-127)
    • 10:30 a.m.
      Real Kaehler submanifolds in low codimension.
      Marcos Dajczer, Institute for Pure-Applied Mathematics, Brazil
      Detlef Gromoll*, State University of New York, Stony Brook
      (910-53-109)
  • Sunday April 14, 1996, 9:00 a.m.-10:50 a.m.
    Special Session on Number Theory, III

    Room 613, Warren Weaver Hall
    Organizers:
    William D. Duke, Rutgers University, New Brunswick
    Ze'ev Rudnick, Tel Aviv University, Israel

    • 9:00 a.m.
      Remarks about continued fractions and real quadratic fields.
      Brian Conrey*, Oklahoma State University, Stillwater
      (910-11-107)
    • 9:40 a.m.
      The zeta function and the lap counting function of linear mod one transformations.
      Leopold Flatto, AT&T Research, Murray Hill, New Jersey
      Jeffrey C. Lagarias*, AT&T Research, Murray Hill, New Jersey
      (910-58-85)
    • 10:20 a.m.
      The Cesaro mean of the $\{n\alpha\}$ sequence and real quadratic fields.
      Jozsef Beck*, Rutgers University, New Brunswick
      (910-11-37)
  • Sunday April 14, 1996, 9:30 a.m.-10:40 a.m.
    Special Session on Topological Methods, III

    Room 813, Warren Weaver Hall
    Organizers:
    Charles R. Traina, Saint John's University
    Lawrence Narici, Saint John's University
    Edward Beckenstein, Saint John's University

    • 9:30 a.m.
      Discrete C*-embedded subsets of a locally compact Abelian group with its Bohr topology.
      Jorge Galindo, Universitat Jaume I, Spain
      Salvador Hernandez*, Universitat Jaume I, Spain
      (910-99-142)
    • 10:10 a.m.
      On the Borel theorem.
      J. Schmets*, University of Liege, Belgium
      Manuel Valdivia, University of Valencia, Spain
      (910-46-68)
  • Sunday April 14, 1996, 11:00 a.m.-11:50 a.m.
    Invited Address

    The Riemann zeta function and random matrix theory.
    Room 109, Warren Weaver Hall
    Ze\'ev Rudnick*, Tel Aviv University, Israel
    (910-11-02)
  • Sunday April 14, 1996, 1:30 p.m.-2:20 p.m.
    Invited Address

    The inverse problem in differential Galois theory.
    Room 109, Warren Weaver Hall
    Michael F. Singer*, North Carolina State University
    (910-12-04)
  • Sunday April 14, 1996, 2:30 p.m.-5:00 p.m.
    Special Session on Partial Differential Equations, IV

    Room 1302, Warren Weaver Hall
    Organizers:
    Patricia E. Bauman, Purdue University, West Lafayette
    Fanghua Lin, Courant Institute of Mathematical Sciences, New York University
    Peter J. Sternberg, Indiana University, Bloomington

    • 2:30 p.m.
      Incompatibility, hysteresis, and the two well problem.
      Robert V. Kohn*, Courant Institute of Mathematical Sciences, New York University
      Veronique Lods, University of Paris, France
      (910-73-48)
    • 3:10 p.m.
      Higher gradient integrability of equilibria for functionals with rank-one convex local energies.
      Michael M. Dougherty*, Pennsylvania State University, Reading
      (910-35-105)
    • 3:50 p.m.
      Regularity results in models for image segmentation, fracture and damage.
      Irene Fonseca*, Carnegie Mellon University
      (910-49-58)
    • 4:30 p.m.
      Revisiting the paradigm of the calculus of variations: An extended variational principle.
      David Kinderlehrer*, Carnegie Mellon University
      (910-35-88)
  • Sunday April 14, 1996, 2:30 p.m.-4:50 p.m.
    Special Session on Global Riemannian Geometry, IV

    Room 102, Warren Weaver Hall
    Organizers:
    Tobias H. Colding, Courant Institute of Mathematical Sciences, New York University
    Claude R. LeBrun, State University of New York, Stony Brook
    Santiago R. Simanca, Polytechnic University

    • 2:30 p.m.
      Disconnectedness of sublevel sets of some Riemannian functionals.
      Alexander Nabutovsky*, University of Toronto
      (910-53-65)
    • 3:00 p.m.
      Hypercomplex geometry and $3$-Sasakian manifolds.
      Krzysztof Galicki*, University of New Mexico
      (910-53-54)
    • 3:30 p.m.
      Towards a classification of $3$-Sasakian manifolds.
      Charles P. Boyer*, University of New Mexico
      (910-53-91)
    • 4:00 p.m.
      Compact Einstein-Weyl manifolds with large symmetry group.
      Yat Sun Poon*, University of California, Riverside
      A. B. Madsen, Odense University, Denmark
      Henrik Pedersen, Odense University, Denmark
      A. Swann, University of Bath, United Kingdom
      (910-52-35)
    • 4:30 p.m.
      Extremal K\"ahler metrics.
      Andrew D. Hwang*, University of Toronto
      (910-58-21)
  • Sunday April 14, 1996, 2:30 p.m.-5:00 p.m.
    Special Session on Number Theory, IV

    Room 613, Warren Weaver Hall
    Organizers:
    William D. Duke, Rutgers University, New Brunswick
    Ze'ev Rudnick, Tel Aviv University, Israel

    • 2:30 p.m.
      Unusual behavior of coefficients of certain power series.
      Andrew M. Odlyzko*, AT&T Research, Murray Hill, New Jersey
      (910-11-80)
    • 3:10 p.m.
      Some cusp forms which don't exist.
      Stephen David Miller*, Princeton University
      (910-11-51)
    • 3:50 p.m.
      Partitions, representation theory and class numbers.
      Ken Ono*, Institute for Advanced Study
      (910-11-49)
    • 4:30 p.m.
      Remarks on the Lang-Trotter conjecture.
      K. Murty*, Institute for Advanced Study and University of Toronto
      (910-11-82)
  • Sunday April 14, 1996, 2:30 p.m.-4:50 p.m.
    Special Session on Hyperbolic Geometry and Discrete Groups, IV

    Room 101, Warren Weaver Hall
    Organizers:
    Jane P. Gilman, Rutgers University, Newark

    • 2:30 p.m.
      Riemann surfaces with maximal reflections.
      Bernard Maskit*, State University of New York, Stony Brook
      (910-30-83)
    • 3:00 p.m.
      Isomorphisms between Teichm\"uller spaces.
      Nikola B. Lakic*, Cornell University, Ithaca
      (910-30-130)
    • 3:30 p.m.
      Subgroups of generalized Hecke groups.
      Shuechin Huang*, Queens College, City University of New York
      (910-30-139)
    • 4:00 p.m.
      Projective embeddings of surfaces represented by subgroups of the modular group.
      Hershel M. Farkas, Hebrew University of Jerusalem, Israel
      Irwin Kra*, State University of New York, Stony Brook
      (910-30-61)
    • 4:30 p.m.
      Informal discussion
  • Sunday April 14, 1996, 2:30 p.m.-4:20 p.m.
    Special Session on Gauge Field Theory, IV

    Room 626, Shimkin Hall
    Organizers:
    Janet C. Talvacchia, Swarthmore College
    Yisong Yang, Polytechnic University

    • 2:30 p.m.
      Non-abelian monopoles and invariants of smooth four-manifolds.
      Paul M.N Feehan*, Harvard University
      Thomas G. Leness, Michigan State University
      (910-58-30)
    • 3:00 p.m.
      Negative tori and the Seiberg-Witten invariants.
      Daniel Ruberman*, Brandeis University
      (910-57-117)
    • 3:30 p.m.
      Non-Abelian equivariant holomorphic Morse inequalities.
      Siye Wu*, International Center for Theoretical Physics, Italy
      (910-58-114)
    • 4:00 p.m.
      A gauge theoretic solution to the index number problem in mathematical economics.
      Pia N. Malaney, Harvard University
      Eric Weinstein*, Massachusetts Institute of Technology
      (910-53-126)
  • Sunday April 14, 1996, 2:30 p.m.-4:30 p.m.
    Special Session on Topological Methods, IV

    Room 813, Warren Weaver Hall
    Organizers:
    Charles R. Traina, Saint John's University
    Lawrence Narici, Saint John's University
    Edward Beckenstein, Saint John's University

    • 2:30 p.m.
      Similarities between bicompletion and Smyth completion.
      Robert Flagg, University of Southern Maine
      Ralph D. Kopperman*, City College, City University of New York
      Philipp Sunderhauf, University of Southern Maine
      (910-54-116)
    • 3:00 p.m.
      Informal discussion
  • Sunday April 14, 1996, 2:30 p.m.-3:50 p.m.
    Special Session on Stochastic Models in Mathematical Finance, IV

    Room 109, Warren Weaver Hall
    Organizers:
    Thaleia Zariphopoulou, University of Wisconsin, Madison

    • 2:30 p.m.
      Option pricing in the presence of transaction costs.
      H. Mete Soner*, Carnegie Mellon University
      (910-60-12)
    • 3:00 p.m.
      Monotone numerical schemes for nonlinear partial differential equations arising in mathematical finance.
      Agnes Tourin*, University of Paris-Dauphine, France
      (910-35-06)
    • 3:30 p.m.
      Imperfect competition among informed traders.
      Kerry Back*, Washington University
      H. Henry Cao, University of California, Berkeley
      Gregory A. Willard, Washington University
      (910-90-41)
  • Sunday April 14, 1996, 2:30 p.m.-4:40 p.m.
    Special Session on Differential Algebra, IV

    Room 634, Shimkin Hall
    Organizers:
    Phyllis J. Cassidy, Smith College
    William F. Keigher, Rutgers University, Newark
    Michael F. Singer, North Carolina State University

    • 2:30 p.m.
      Addition schemes for first integrals.
      William Y. Sit*, City College, City University of New York
      (910-12-103)
    • 3:05 p.m.
      Prolongation theory from an algebraic viewpoint.
      Raymond T. Hoobler*, City College, City University of New York
      (910-17-124)
    • 3:40 p.m.
      Differential specializations and observability in control theory.
      Sally D. Morrison*, Bucknell University
      (910-12-125)
    • 4:15 p.m.
      Finitely obtainable classes of ideals.
      Richard M. Cohn*, Rutgers University, New Brunswick
      (910-12-101)
  • Sunday April 14, 1996, 2:30 p.m.-4:55 p.m.
    Contributed Paper Session, II

    Room 1013, Warren Weaver Hall

    • 2:30 p.m.
      The hexagonal honeycomb: An existence theorem.
      Frank Morgan*, Williams College
      (910-49-90)
    • 2:45 p.m.
      Solving nonlinear systems of equations using least-square Newton iterations.
      Yixun Shi*, Bloomsburg University of Pennsylvania
      (910-65-115)
    • 3:00 p.m.
      Contact topology and the four-normals theorem.
      Juan Carlos Alvarez Paiva*, University of Simon Bolivar, Venezuela
      (910-53-20)
    • 3:15 p.m.
      Singular Riemannian manifolds.
      Zhong-dong Liu*, University of South Carolina, Columbia
      Zhongmin Shen, Indiana University-Purdue University, Indianapolis
      (910-53-22)
    • 3:30 p.m.
      Variational techniques on the associated metrics of complex contact manifolds.
      Brendan J. Foreman*, Michigan State University
      (910-58-23)
    • 3:45 p.m.
      Discrete surface groups actions with accidental parabolics on complex hyperbolic plane.
      Igor Belegradek*, University of Maryland, College Park
      (910-57-64)
    • 4:00 p.m.
      On the mean curvature function of isometric immersions.
      Georgi I. Kamberov*, University of Massachusetts, Amherst
      (910-53-17)
    • 4:15 p.m.
      Asymptotic behavior of solutions and subsolutions of the stationary Schr\"odinger equation.
      Alexander I. Kheyfits*, Courant Institute of Mathematical Sciences, New York University
      (910-35-72)
    • 4:30 p.m.
      Ergodic theorems for Markov chains.
      Onesimo Hernandez-Lerma*, CINVESTAV del IPN, Mexico
      Jean B. Lasserre, CINVESTAV del IPN, Mexico
      (910-60-09)
    • 4:45 p.m.
      Faruk F. Abi-Khuzam
    • 4:45 p.m.
      Zero-free regions for sections of power series.
      Faruk F. Abi-Khuzam*, American University of Beirut
      (910-30-145)
Inquiries:  meet@ams.org