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Nearly Gorenstein Polytopes

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arxiv 2303.13084 v1 pith:3EE2FDLP submitted 2023-03-23 math.CO math.AC

Thomas Hall , Max Kölbl , Koji Matsushita , Sora Miyashita This is my paper · ORCID
classification math.COmath.AC
keywords nearlypolytopesgorensteinconditionsehrhartgivegorensteinnesslattice
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In this paper, we study nearly Gorensteinness of Ehrhart rings arising from lattice polytopes. We give necessary conditions and sufficient conditions on lattice polytopes for their Ehrhart rings to be nearly Gorenstein. Using this, we give an efficient method for constructing nearly Gorenstein polytopes. Moreover, we determine the structure of nearly Gorenstein (0, 1)-polytopes and characterise nearly Gorensteinness of edge polytopes and graphic matroids.

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