Computational Tools for PDEs with Complicated Geometries and Interfaces

America/New_York
162 5th Avenue

162 5th Avenue

New York, N.Y. 10010
Fruzsina Agocs (Flatiron Institute), Travis Askham (NJIT), Alex Barnett (Flatiron Institute), Dan Fortunato (Flatiron Institute), Fredrik Fryklund (Flatiron Institute), Leslie Greengard (Flatiron Institute and NYU), Jeremy Hoskins (UChicago), Manas Rachh (Flatiron Institute), Cindy Rampersad (Flatiron Institute), Michael Shelley (Flatiron Institute), David Stein
Description

Integral equation methods offer a powerful unified framework for accurate modeling in fields such as acoustics, electromagnetics, elastostatics, nano-optics, microfluidics, biophysics, and geophysics, governed by PDEs such as the Laplace, Stokes, Helmholtz, Maxwell, Navier, heat and Navier-Stokes equations. For constant-coefficient problems, they reduce the unknowns to functions defined on the boundary alone. Even for variable-coefficient and nonlinear problems, they have distinct advantages over standard finite difference and finite element methods. Aiming at graduate students, postdocs, and practitioners, we will introduce the basic mathematical foundation of such methods, illustrate their use in applications, and offer expert-run hands-on tutorials using a set of efficient software tools. These tools allow large problems to be solved with high-order accuracy in a time almost linear in the number of unknowns (so-called "fast algorithms"). The integral equation framework is geometrically flexible, allowing for input from a variety of CAD formats and the incorporation of corner and edge singularities in bounded, unbounded or periodic domains. Topics will include: integral equation formulations, discretization, fast solvers, PDEs on surfaces, volumetric representations for variable-coefficient PDEs, and applications to steady-state and time-dependent problems.

Conference themes

  • Acoustic and electromagnetic scattering in the frequency domain
  • Biophysical and geological modeling
  • Surface PDEs
  • Software tools for boundary value problems in two and three dimensions
  • Fast direct and iterative solvers
  • Hierarchical Poincare Steklov solvers
  • Quadrature for singular integrals

 

Important Dates

  • Feb 29, 2024: Application deadline
  • Mar 18, 2024: Acceptance notification
  • Mar 31, 2024: Registration Deadline

 

Note: Registration links have been sent out to accepted applicants. The deadline to register is Mar 31, 2024. In case you didn’t receive an email, please check your spam folder for an email titled, “Register for workshop on Computational Tools for PDEs with Complicated Geometries and Interfaces on June 10-14”, or reach out to us at mrachh@flatironinstitute.org

 

 

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