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Multimodel and Multialgorithm Coupling for Multiscale Problems

July 4 - 7, 2011
Snowbird, Utah, USA

This 2011 von Neumann Symposium on Multimodel and Multialgorithm Coupling for Multiscale Problems is organized by John B. Bell (chair), Lawrence Berkeley National Laboratory; Alejandro L. Garcia, San Jose State University; and Francis Alexander, Los Alamos National Laboratory, and will take place at Snowbird Resort, Snowbird, Utah, July 4-7, 2011. View poster here.

The topic was selected by the AMS von Neumann Symposium Committee, whose members at the time were Ronald A. DeVore, Texas A&M University; James A. Sethian, University of California, Berkeley; and Joel H. Spencer, New York University-Courant Institute.

This symposium is supported with a fund established by Dr. and Mrs. Carrol V. Newsom in honor of the memory of John von Neumann.


Many important applications in both science and technology are characterized by having interactions among various phenomena or components with dissimilar structures and occurring over a broad range of length and time scales. These classes of problems require innovative approaches targeted at spanning a large range of scales and, in this regard, multimodel and multialgorithm methods have emerged as promising new directions. A defining characteristic of these approaches is that rather than using a single formulation for a problem, they utilize multiple models and algorithms, each appropriate to a particular scale. Multimodel and multialgorithm methods are powerful tools; however the mathematical and numerical analysis required for successfully combining models or coupling algorithms can be as complicated as the analysis of the individual models and algorithms themselves. By their nature, multiscale problems are highly interdisciplinary so multimodel and multialgorithm methods have recently started arising in a variety of contexts and disciplines. The goal of the symposium is to enable applied mathematicians and scientists from a variety of application areas to discuss current practices and future research directions in the development of hybrid methodologies for multiscale phenomena. In addition, by bringing together the mathematics community with applications specialists, we hope to identify some of the key mathematical ideas that transcend particular applications. Overall, the symposium should serve as a focal point for assessing the state of the art and articulating important future research directions.

The symposium will be organized around eight plenary talks given by Aleksandar Donev, Courant Institute, New York University; Weinan E, Princeton University; Nicolas Hadjiconstantinou, Massachusetts Institute of Technology; George Karniadakis, Brown University; Rupert Klein, Freie Universität, Berlin; Petros Koumoutsakos, ETH Zurich; J. Tinsley Oden, The University of Texas at Austin; and George Oster, University of California, Berkeley. There will also be a series of shorter presentations.

The participation of women, underrepresented minorities, junior scientists (advanced graduate students and recent Ph.D.s), as well as industry and national laboratory representatives are especially encouraged.

Application Procedures

To apply for an invitation to participate and to request limited support funds:

  • Go to
  • Click on "as a program applicant". If you do not have a standing account, you must create one by filling in your email address, creating a password, clicking the button "this is my first login, please create an account for me", then clicking the "login" button. A login token will be sent almost immediately to the email address you provided. Return to within 24 hours and click on the applicant login link to continue.
  • After logging in, fill in the cover sheet and submit it. Please ignore any instructions regarding reference letters.
  • Click on "View Programs"
  • Click on "apply" for the von Neumann Symposium.
  • Follow the directions from there.

If you have questions using this program, please contact the AMS at The deadline for applications is February 1, 2011.

Participation in this program is limited. All requests will be reviewed and considered by the organizing committee. Letters of invitation with specific offers of support (if applicable) will be emailed in late February, along with a brochure of information, the program information known to date, and information on travel and accommodations at Snowbird. All individuals who apply will be notified of the decision as to acceptance or declination before March 1, 2011.

Please note that those attending the symposium should plan to arrive on arrive on Sunday, July 3, and depart on Friday, July 8. Lectures will be held Monday through Thursday.