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Added package CotangentCohomology for computing (higher) cotangent cohomology#4458

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Added package CotangentCohomology for computing (higher) cotangent cohomology#4458
nilten wants to merge 2 commits into
Macaulay2:developmentfrom
nilten:development

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@nilten

@nilten nilten commented Jun 24, 2026

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I added a new package "CotangentCohomology" which does two things:

  • it computes cotangent cohomology of a ring S with coefficients in an S-module M by considering the derivation complex coming from a Koszul-Tate resolution of S
  • it creates so-called arborescent resolutions, a special kind of Koszul-Tate resolution

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