Special Session 80: Inverse Problems and Imaging

Fractional Dirac Operators and Geometric Reconstruction

Hadrian Quan
University of Washington
USA
Co-Author(s):    Gunther Uhlmann
Abstract:
I will discuss joint work with Gunther Uhlmann regarding the anisotropic fractional Calderon problem for Dirac operators on closed manifolds; these give fractional analogues of Maxwell systems. Namely we show that knowledge of the source-to-solution map of the fractional Dirac operator, for data sources supported in an arbitrary open set in a Riemannian manifold allows one to reconstruct the Riemannian manifold, its Clifford module structure, and the associated connection (up to an isometry fixing the initial set). Time permitting I will discuss on-going work regarding Caffarelli-Silvestre type extensions for fractional systems.