SMS scnews item created by Daniel Daners at Wed 17 Apr 2013 1906
Type: Seminar
Distribution: World
Expiry: 22 Apr 2013
Calendar1: 22 Apr 2013 1400-1500
CalLoc1: AGR Carslaw 829
Auth: daners@d110-33-205-32.mas801.nsw.optusnet.com.au (ddan2237) in SMS-WASM

# The inverse Calderón problem for Schrödinger operators on Riemann surfaces

### Tzou

Leo Tzou
University of Helsinki, Finland
22 April 2013 14:00-15:00, Carslaw Room 829 (AGR)

## Abstract

We show that on a smooth compact Riemann surface with boundary $$(M_0,g)$$ the Dirichlet-to-Neumann map of the Schrödinger operator $$\Delta_g+V$$ determines uniquely the potential $$V$$.

This seemingly analytical problem turns out to have connections with ideas in symplectic geometry and differential topology. We will discuss how these geometrical features arise and the techniques we use to treat them.

This is joint work with Colin Guillarmou of ENS. The speaker is partially supported by NSF Grant No. DMS-0807502 during this work.

Check also the PDE Seminar page. Enquiries to Florica Cîrstea or Daniel Daners.

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