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Radon Phenomenon in PDE and Complex Analysis Problems
Wed, October 6, 2010 11:00AM - 12:00PM
| Time: | 11:00AM - 12:00PM |
| Location: | Simons Auditorium |
| Speakers: | Mark Agranovsky, Mark Agranovsky |
| Abstract: | Radon phenomenon (the terminology is due to L. Ehrenpreis) addresses the situations when one can judge the properties of an object (a function or a manifold) from its restrictions to certain subsets (submanifolds, sections, slices...).
In context of PDEs, one wants to know whether a function is a solution
of a given PDE if it coincides with solutions of this PDE on a family of
submanifolds. In complex analysis, one deals with Cauchy-Riemann equation
and is led to a problem of characterization of holomorphic or CR functions
or, more generally, holomorphic or CR manifolds, or their boundaries, in
terms of zero complex moments on varieties of closed curves.
I will present a survey of results of this nature obtained in the last
decade for elliptic and Cauchy-Riemann equations. Problems of this type
arise, in particular, in integral geometry and tomography. |
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