Midwest Dynamical Systems

Title: Proof of the HRT conjecture for special configurations
Speaker: Ciprian Demeter
Speaker Info: Indiana University, Bloomington
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Special Note:

The strong HRT conjecture asserts that the time-frequency translates of any nontrivial function in L^2(R) are linearly independent. The weak HRT conjecture has the same formulation, but this time for Schwartz functions. Prior to our work, the only result on HRT of a reasonably general nature was Linnell's proof in the case when the translates belong to a lattice. I will briefly describe an alternative argument to Linnell's (joint work with Zubin Gautam), inspired by the theory of random Schrodinger operators. Then I will explore a number theoretical approach to the HRT conjecture, for some special 4 point configurations.
Date: Saturday, October 30, 2010
Time: 2:30pm
Where: Chambers Hall
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