D-Branes, Pi-Stability and Theta-Stability

dc.creatorAspinwall, Paul S.
dc.date2004-07-14
dc.date.accessioned2026-07-07T04:17:12Z
dc.date.available2026-07-07T04:17:12Z
dc.descriptionWe investigate some aspects of Pi-stability of D-branes on Calabi-Yau threefolds in cases where there is a point in moduli space where the grades nearly or completely align. We prove that an example of complete alignment is the case of a collapsed del Pezzo surface. It is shown that there is an open neighbourhood of such a point for which Pi-stability reduces to theta-stability of quiver representations. This should be contrasted to the case of the large radius limit where mu-stability of sheaves cannot be extended out over an open neighbourhood.
dc.description16 pages, LaTeX, lecture given at "String Geometry", Snowbird 2004
dc.identifierhttps://arxiv.org/abs/hep-th/0407123
dc.identifierhttp://arxiv.org/abs/hep-th/0407123
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/52656
dc.subjectHigh Energy Physics - Theory
dc.titleD-Branes, Pi-Stability and Theta-Stability
dc.typetext

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