Special Session 80: Inverse Problems and Imaging

X-ray transforms and degenerate elliptic operators

Francois S Monard
University of California Santa Cruz
USA
Co-Author(s):    Yuzhou Zou
Abstract:
The overarching theme of this talk is concerned with the mapping properties of X-ray transforms on manifolds with strictly convex boundary. On certain symmetric manifolds with constant curvature and strictly convex boundary, recent functional relations between the X-ray transform and degenerate elliptic operators provide the framework to understand on what scales of spaces the X-ray transform satisfies tame estimates (i.e. finite-degree smoothing with finite-degree unsmoothing inverse) that holds all the way to the boundary. I will discuss these results, as well as recent results with Yuzhou Zou regarding a refined study of these degenerate elliptic operators. Related recent works: http://arxiv.org/abs/2112.14904 http://arxiv.org/abs/2203.09861 http://arxiv.org/abs/2302.08133