Special isogenies and tensor product multiplicities

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dc.creatorKumar, Shrawan
dc.creatorStembridge, John R.
dc.date2007-06-15
dc.date.accessioned2026-07-07T08:10:28Z
dc.date.available2026-07-07T08:10:28Z
dc.descriptionWe show that any bijection between two root systems that preserves angles (but not necessarily lengths) gives rise to inequalities relating tensor product multiplicities for the corresponding complex semisimple Lie groups (or Lie algebras). We explain the inequalities in two ways: combinatorially, using Littelmann's Path Model, and geometrically, using isogenies between algebaric groups defined over an algebraically closed field of positive characteristic.
dc.description11 pages
dc.identifierhttps://arxiv.org/abs/0706.2324
dc.identifierhttp://arxiv.org/abs/0706.2324
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/131834
dc.subjectRepresentation Theory
dc.subjectAlgebraic Geometry
dc.subject22E46, 14L30
dc.titleSpecial isogenies and tensor product multiplicities
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