735 citations · 977 across the 22 of their papers we have counts for
Showing 2026Show all
3 papers · 1 filter
math.FA2026
Schäffer's matrix inequality: the exact asymptotic constant
Samy Houache, Oleg Szehr, Rachid Zarouf
Let denote the smallest constant such that \[ |\det T|\|T^{-1}\| \leq S_n \|T\|^{n-1} \] for every invertible operator on every -dimensional complex Banach space. In H…
math.CA2026
Projected Inner-Function Dynamics and Crystalline Measures of Meyer-Blaschke type
Oleg Szehr, Rachid Zarouf
We generalize a construction of Yves Meyer of sparse crystalline measures arising from powers of a Blaschke factor. Starting from a recursion on the unit circle where…
eess.SP2026
Signal Recovery from Time and Frequency Samples
Mert Kayaalp, Oleg Szehr
We analyze signal recovery when samples are taken concomitantly from a signal and its Fourier transform. This two-sided sampling framework extends classical one-sided reconstructio…