Roswitha Rissner

activity

20142025

most citedSets of lengths of factorizations of integer-valued polynomials on Dedekind domains with finite residue fields

27 citations · 64 across the 13 of their papers we have counts for

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math.AC2024

Irreducible integer-valued polynomials with prescribed minimal power that factors non-uniquely

Sarah Nakato, Roswitha Rissner

We study the question up to which power an irreducible integer-valued polynomial that is not absolutely irreducible can factor uniquely. For example, for integer-valued polynomials…

math.RA2024

Counting core sets in matrix rings over finite fields

Roswitha Rissner, Nicholas J. Werner

Let $R$ be a commutative ring and $M_{n} (R)$ be the ring of $n \times n$ matrices with entries from $R$ . For each $S \subseteq M_{n} (R)$ , we consider its (generalized) null ideal $N(S)…