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UID:20250713T121143EDT-0620VNKjUw@132.216.98.100
DTSTAMP:20250713T161143Z
DESCRIPTION:Title: A quasianalytic property of families in the image of int
 egral transforms on higher grassmannians.\n\nAbstract: We will consider ce
 rtain integral operators on higher grassmannians that appear naturally in 
 convex geometry\, as well as in representation theory: the Radon and cosin
 e transforms. The image of such operators is often a rather small subspace
  of all functions\, and can be explicitly described in terms of its SO(n)-
 components. We will describe a quasianalytic-type property exhibited by th
 ose images\, allowing to uniquely determine a function from its values on 
 a small set. This allows us to sharpen classical uniqueness theorems of Fu
 nk and Alexandrov in geometric tomography\, and of Klain and Schneider in 
 valuation theory. Similar results hold for more general families of functi
 ons and global sections of bundles appearing as representations of GL_n(R)
 .\n\nRoom: 4336-4384 Pav. André-Aisentadt (CRM)\n\nor\n\nZoom link: https:
 //umontreal.zoom.us/j/83118539851?pwd=bk5IOXBLNDRNSnR4dEcrSUFJVWhPZz09\n\n
 Meeting ID: 831 1853 9851\n\nPasscode: 215516\n\n \n
DTSTART:20221021T183000Z
DTEND:20221021T193000Z
SUMMARY:Dmitry Faifman (Tel Aviv University)
URL:/mathstat/channels/event/dmitry-faifman-tel-aviv-u
 niversity-342873
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