Author

Sunil Kumar Mallick

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Preprint Aug 2026

Additive Decompositions by Conjugacy Classes in $M_n(\mathbb{F}_q)$

Let $n \geq 2$ be a positive integer, and $q$ be a prime power. We study the $number$ of additive decompositions of nonscalar matrices in the matrix ring $M_n(\mathbb{F}_q)$ as sums of elements from two prescribed conjugacy classes. Let $z \in M_n(\mathbb{F}_q)$ be nonscalar. We show that, except for the case $(n,q,\te...

K. Kishore, Sunil Kumar Mallick · 0 citations