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arXiv · 2601.13483

Gorenstein Special Fiber Rings of Ladder Determinantal Modules

Louiza Fouli·Kuei-Nuan Lin·Haydee Lindo·Maral Mostafazadehfard
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Abstract

A ladder determinantal module is an arbitrary direct sum of ideals of maximal minors of a generic ladder matrix. In this article, we give necessary and sufficient conditions for the special fiber ring of such modules to be Gorenstein. These conditions are expressed in terms of data obtained from the underlying matrix.

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Louiza Fouli, Kuei-Nuan Lin, Haydee Lindo, Maral Mostafazadehfard. 2026-01-20. Gorenstein Special Fiber Rings of Ladder Determinantal Modules. https://arxiv.org/abs/2601.13483

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