Steklov eigenproblems

April 30 to May 4, 2018

at the

American Institute of Mathematics, San Jose, California

organized by

Oscar Bruno, Michael Levitin, Nilima Nigam, and Iosif Polterovich

Original Announcement

This workshop will focus on the geometric and computational aspects of the Steklov eigenproblems.

Steklov eigenproblems (with the spectral parameter appearing in the boundary conditions) have been the subject of intense mathematical investigation over the past several years in a range of areas of mathematics. Recently, there has been a growing interest in this topic from the viewpoint of spectral geometry. Steklov problems arise in a number of important applications, notably, in hydrodynamics (through the Steklov type sloshing eigenvalue problem describing small oscillations of fluid in an open vessel), and in medical and geophysical imaging (via the link between the Steklov problem and the celebrated Dirichlet-to-Neumann map). Any progress made in the area during the workshop could therefore have a wide mathematical impact.

The main purpose of the workshop is to combine deep theoretical analysis with highly accurate and efficient numerical methods, in order to study various geometric features of the Steklov eigenvalues and eigenfunctions. The questions of interest are quite challenging because they are at the forefront of research in both numerical analysis and spectral geometry. These communities do not significantly overlap, and this workshop will provide a rare opportunity for researchers on both numerical and theoretical sides to get together, brainstorm, and share expertise across fields. Advanced analytic techniques would help creating "right" numerical methods, which in turn should improve the geometric and analytic intuition, and lead to discoveries of new phenomena.

We aim to make progress on the following four related topics:

We hope to conduct rigorous analysis and to formulate, investigate, and construct precise numerical approximation strategies for these questions. We intend to devote the bulk of our time at the workshop to working groups making progress on concrete questions under each topic heading. Since these are interrelated topics, we envision meeting together to summarize progress at the end of each day and to flesh out activities for the next. Open problem sessions, where we take turns presenting the background for and clear statement of specific open questions, will be held throughout the workshop

Material from the workshop

A list of participants.

The workshop schedule.

A report on the workshop activities.

A list of open problems.

Videos

- Organizer interview

- Waves Scattering Eigenvalues and Eigenfunctions by Oscar Bruno