89 citations · 289 across the 47 of their papers we have counts for
57 papers
The HRT Conjecture for Symmetric Configurations and Real-Valued Functions
Shuang Guan, Kasso A. Okoudjou
The Heil-Ramanathan-Topiwala conjecture asserted that every finite collection of distinct time-frequency shifts of a nonzero square-integrable function is linearly independent. Rec…
On the structure of the Gram matrix for Gabor systems generated by B-splines
Martin Buck, Christina Frederick, Kasso Okoudjou +1
We consider the Gabor system generated by a continuous, compactly supported function over the time-frequency lattice generated by…
On the Injectivity of STFT Phase Retrieval with super-exponential decaying window function
Shuang Guan, Kasso A. Okoudjou
We investigate the uniqueness of short-time Fourier transform phase retrieval problems in . In particular, for underlying window functions whose Fourier transform…
Abelian and Dihedral equiangular tight frames of redundancy
Radel Ben Av, Xuemei Chen, Assaf Goldberger +1
This paper studies group frames (-frames) where the unitary group representation can be projective. When the group is abelian, for most combinations , we show that $ETF(N,…
Orthogonal Polynomials on Bubble-Diamond Fractals
Elena Axinn, Calvin Osborne, Kasso A. Okoudjou +2
We develop a theory of polynomials and, in particular, an analog of the theory of Legendre orthogonal polynomials on the bubble-diamond fractals, a class of fractal sets that can b…
Tight Frames Generated By A Graph Short-Time Fourier Transform
Martin Buck, Kasso Okoudjou
A graph short-time Fourier transform is defined using the eigenvectors of the graph Laplacian and a graph heat kernel as a window parametrized by a non-negative time parameter .…