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math.FA2021
The HRT conjecture for two classes of special configurations
Kasso A. Okoudjou, Vignon Oussa
The HRT (Heil-Ramanathan-Topiwala) conjecture stipulates that the set of any finitely many time-frequency shifts of a non-zero square Lebesgue integrable function is linearly indep…
math.RT2021
Phase retrieval for affine groups over prime fields
David Bartusel, Hartmut Führ, Vignon Oussa
We study phase retrieval for group frames arising from permutation representations, focusing on the action of the affine group of a finite field. We investigate various versions of…