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Homotopy path algebras

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Abstract

We define a basic class of algebras which we call homotopy path algebras. We find that such algebras always admit a cellular resolution and detail the intimate relationship between these algebras, stratifications of topological spaces, and entrance/exit paths. As examples, we prove versions of homological mirror symmetry due to Bondal–Ruan for toric varieties and due to Berglund–Hübsch–Krawitz for hypersurfaces with maximal symmetry. We also demonstrate that a form of shellability implies Koszulity and the existence of a minimal cellular resolution. In particular, when the algebra determined by the image of the toric Frobenius morphism is directable, then it is Koszul and admits a minimal cellular resolution.

Original languageDanish
Article number25
JournalSelecta Mathematica, New Series
Volume31
Issue number2
DOIs
StatePublished - Apr 2025

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2025.

Keywords

  • Cellular resolution
  • Coherent-constructible correspondence
  • Entrance path
  • Mirror symmetry
  • Quiver algebra
  • Toric variety

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