Algebraic shifting and exterior and symmetric algebra methods

dc.creatorNagel, Uwe
dc.creatorRoemer, Tim
dc.creatorVinai, Natale Paolo
dc.date2005-12-22
dc.date2007-02-21
dc.date.accessioned2026-07-07T07:47:46Z
dc.date.available2026-07-07T07:47:46Z
dc.descriptionWe establish results about algebraic shifting of simplicial complexes and use them to compare different shifting operations. In particular, we show that each shifting operation does not decrease the number of facets, and that the exterior shift is the best among the exterior shifting operations in the sense that it increases the number of facets the least. Methods of proof include Gröbner basis theory over the exterior algebra, Cartan homology, degree functions, and Alexander duality.
dc.description26 pages. Revised version. Proofs of theorems 2.10 (now 2.11) and 2.11 (now 2.12) corrected. Exposition improved with some reordering. Minor changes
dc.identifierhttps://arxiv.org/abs/math/0512521
dc.identifierhttp://arxiv.org/abs/math/0512521
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/124282
dc.subjectCommutative Algebra
dc.subject13F55; 55U10
dc.titleAlgebraic shifting and exterior and symmetric algebra methods
dc.typetext

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