24 citations · 51 across the 13 of their papers we have counts for
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math.CO2019★ 2 cited
Riesz bases of exponentials and multi-tiling in finite abelian groups
Sam Ferguson, Azita Mayeli, Nat Sothanaphan
Motivated by the open problem of exhibiting a subset of Euclidean space which has no exponential Riesz basis, we focus on exponential Riesz bases in finite abelian groups. We point…
math.NT2019★ 24 cited
Fuglede's conjecture fails in 4 dimensions over odd prime fields
Samuel Ferguson, Nat Sothanaphan
Fuglede's conjecture in , a prime, says that a subset tiles by translation if and only if is spectral, meaning any complex-valu…