Izak Oltman

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20222026

most citedA probabilistic Weyl-law for perturbed Berezin-Toeplitz operators

2 citations · 5 across the 9 of their papers we have counts for

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math.SP2026

The Spectrum of the Discrete Mathieu Operator with Nonreal Coupling

Frédéric Klopp, Izak Oltman

We study the discrete Mathieu operator with nonreal coupling in the large-period limit, using complex WKB methods for analytic finite-difference equations. We obtain quantization f…

math.SP2026

Spectra of Non-Self-Adjoint Almost Mathieu Matrices and the Scottish Flag Operator

Simon Becker, Izak Oltman

For $N \geq 3$ and a potential phase $ϑ \in R$ , we study the non-self-adjoint almost Mathieu matrix obtained by multiplying the discrete Laplacian by a complex phase…