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math.NT2025
Extensions of integral orthoregular sets and icubes
Márton Erdélyi, Péter Maga, Gergely Zábrádi
In this paper, we study the question when a (rational or Gaussian) integral vector can be extended to an integral orthogonal basis consisting of vectors of equal length. We also st…
math.NT2022
The purity locus of matrix Kloosterman sums
Márton Erdélyi, Will Sawin, Árpád Tóth
We establish the exact structure of the cohomology associated to a certain matrix exponential sum investigated in prior work (arXiv:2109.00762) of the first and last author.