On compactifications of the Steinberg zero-fiber

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dc.creatorLynderup, Thomas Haahr
dc.creatorThomsen, Jesper Funch
dc.date2005-06-17
dc.date.accessioned2026-07-07T05:20:48Z
dc.date.available2026-07-07T05:20:48Z
dc.descriptionLet G be a connected semisimple linear algebraic group over an algebraically closed field k of positive characteristic and let X denote an equivariant embedding of G. We define a distinguished Steinberg fiber N in G, called the zero-fiber, and prove that the closure of N within X is normal and Cohen-Macaulay. Furthermore, when X is smooth we prove that the closure of N is a local complete intersection.
dc.description18 pages
dc.identifierhttps://arxiv.org/abs/math/0506348
dc.identifierhttp://arxiv.org/abs/math/0506348
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/75516
dc.subjectAlgebraic Geometry
dc.subjectRepresentation Theory
dc.subject14M17; 13A35
dc.titleOn compactifications of the Steinberg zero-fiber
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