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Math Seminar: Unitary Orbit Preservers

Thursday, November 14, 2019

2:00 PM-3:00 PM

Edward Poon, Embry-Riddle Aeronautical University

Abstract: Given an operator A acting on a Hilbert space H and a group G of unitary operators on H, the unitary orbit of A under G is {UAU*: U in G}. We discuss the problem of characterizing the linear maps which leave this orbit invariant for various choices of A and G.

Contact Information

Hugo Woerdeman
hugo@math.drexel.edu

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Location

Korman Center, Room 243, 15 S. 33rd Street, Philadelphia, PA 19014

Audience

  • Everyone