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Equivariant resolutions over Veronese rings

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Working in a polynomial ring (Formula presented.), where (Formula presented.) is an arbitrary commutative ring with 1, we consider the (Formula presented.) th Veronese subalgebras (Formula presented.), as well as natural (Formula presented.) -submodules (Formula presented.) inside (Formula presented.). We develop and use characteristic-free theory of Schur functors associated to ribbon skew diagrams as a tool to construct simple (Formula presented.) -equivariant minimal free (Formula presented.) -resolutions for the quotient ring (Formula presented.) and for these modules (Formula presented.). These also lead to elegant descriptions of (Formula presented.) for all (Formula presented.) and (Formula presented.) for any pair of these modules (Formula presented.).

Original languageEnglish
Article numbere12848
JournalJournal of the London Mathematical Society
Volume109
Issue number1
DOIs
StatePublished - Jan 2024

Bibliographical note

Publisher Copyright:
© 2023 The Authors. Journal of the London Mathematical Society is copyright © London Mathematical Society.

Funding

The authors thank Francesca Gandini for helpful conversations, and Darij Grinberg for helpful edits, including a shortening of the proof of Proposition 3.6(iii) . They thank an anonymous referee for helpful edits. The first author was partially supported by NSF Grant DMS‐1745638, third and fourth authors by NSF Grant DMS‐2053288, and the fifth author by NSF Grant DMS‐2202871.

FundersFunder number
National Science Foundation Arctic Social Science ProgramDMS‐2202871, 2053288, DMS‐1745638, DMS‐2053288

    ASJC Scopus subject areas

    • General Mathematics

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