Semidistrim Lattices

We introduce semidistrim lattices, a simultaneous generalization of semidistributive and trim lattices that preserves many of their common properties. We prove that the elements of a semidistrim lattice correspond to the independent sets in an associated graph called the Galois graph, that products...

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Main Authors: Colin Defant, Nathan Williams
Format: Article
Language:English
Published: Cambridge University Press 2023-01-01
Series:Forum of Mathematics, Sigma
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2050509423000464/type/journal_article
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author Colin Defant
Nathan Williams
author_facet Colin Defant
Nathan Williams
author_sort Colin Defant
collection DOAJ
description We introduce semidistrim lattices, a simultaneous generalization of semidistributive and trim lattices that preserves many of their common properties. We prove that the elements of a semidistrim lattice correspond to the independent sets in an associated graph called the Galois graph, that products and intervals of semidistrim lattices are semidistrim and that the order complex of a semidistrim lattice is either contractible or homotopy equivalent to a sphere.
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spelling doaj.art-614c4a96f9d642e482ca9e054fecf08f2023-06-16T08:51:42ZengCambridge University PressForum of Mathematics, Sigma2050-50942023-01-011110.1017/fms.2023.46Semidistrim LatticesColin Defant0Nathan Williams1Massachusetts Institute of Technology; E-mail:University of Texas at Dallas; E-mail:We introduce semidistrim lattices, a simultaneous generalization of semidistributive and trim lattices that preserves many of their common properties. We prove that the elements of a semidistrim lattice correspond to the independent sets in an associated graph called the Galois graph, that products and intervals of semidistrim lattices are semidistrim and that the order complex of a semidistrim lattice is either contractible or homotopy equivalent to a sphere.https://www.cambridge.org/core/product/identifier/S2050509423000464/type/journal_article06B0506B1506D75
spellingShingle Colin Defant
Nathan Williams
Semidistrim Lattices
Forum of Mathematics, Sigma
06B05
06B15
06D75
title Semidistrim Lattices
title_full Semidistrim Lattices
title_fullStr Semidistrim Lattices
title_full_unstemmed Semidistrim Lattices
title_short Semidistrim Lattices
title_sort semidistrim lattices
topic 06B05
06B15
06D75
url https://www.cambridge.org/core/product/identifier/S2050509423000464/type/journal_article
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