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math.CO2025
Forbidden multipliers in abelian difference sets
Niklas Miller
We make the observation that certain group automorphisms that fix a large subgroup of an abelian group cannot be multipliers in any non-trivial abelian difference sets, with the si…
math.CO2024
On the singularity probability of random circulant Bernoulli matrices
Niklas Miller
A complete characterization of the asymptotic singularity probability of random circulant Bernoulli matrices is given for all values of the probability parameter.