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Nonlinear Analysis

Effcient time-domain solvers for wave propagation problems must include three crucial components

Thomas Hagstrom

Location:  Hill 705
Date & time: Tuesday, 11 October 2016 at 1:40PM -

1) Robust high-resolution volume discretizations applicable in complex geometry (i.e. on grids that can be generated e?ciently) - we believe that high-resolution methods enabling accurate simulations with minimal dofs-per-wavelength are necessary to solve di?cult 3 + 1-dimensional problems with the possibility of error control.

2) Radiation boundary conditions which provide arbitrary accuracy at small cost (spectral convergence, weak dependence on the simulation time and wavelength)

3) Algorithms for directly propagating the solution to remote locations -avoid sampling the wave whenever possible.

In this talk we will discuss recent developments in all three areas, including our own work on on high-order energy stable volume discretization methods and the construction of optimal local radiation boundary conditions.

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Department of Mathematics

Department of Mathematics
Rutgers University
Hill Center - Busch Campus
110 Frelinghuysen Road
Piscataway, NJ 08854-8019, USA

Phone: +1.848.445.2390
Fax: +1.732.445.5530