Face-dependent artinian reduction conjecture for semigroup resolutions
Face-dependent artinian reduction conjecture for semigroup resolutions
Let be the Kunz cone, let be a face of , and let be a numerical semigroup whose corresponding point lies in . Let be the ideal in the Apéry-resolution construction, and let be the defining toric ideal. Artinian-reduction conjecture. Substituting into the minimal resolution for obtained in the cited theorem, or analogously into the minimal resolution for predicted by the parametrized minimal-resolution conjecture, yields a minimal free resolution of an artinian binomial ideal depending only on the face containing . This predicts that the specialization preserves minimality and removes dependence on the particular semigroup within the face.
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Primary source
Benjamin Braun, Tara Gomes, Ezra Miller, Christopher O'Neill and Aleksandra Sobieska, “Minimal free resolutions of numerical semigroup algebras via Apéry specialization”, arXiv:2310.03612 (2024).
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