Exploració per autor "Puerta Coll, Xavier"
Ara es mostren els items 27-31 de 31
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The geometry of the set of conditioned invariant flags
Puerta Coll, Xavier (1999)
Working paper
Accés obert -
The topology of the set of conditioned invariant subspaces
Puerta Coll, Xavier; Helmke, Uwe (1999)
Article
Accés obertWe consider the topology of the set of conditioned invariant subspaces of an observable pair $(C,A)$ of a fixed dimension. By fixing the observability indices of the restricted system, a stratification by finitely many ... -
Versal deformations in generalized flag manifolds
Puerta Coll, Xavier (2004)
Article
Accés obertWe find explicit miniversal deformations of flags in the generalized flag manifolds, with regard a natural equivalence relation defined by the group action that keeps fixed the reference flag. -
Versal deformations in orbit spaces
Puerta Sales, Ferran; Puerta Coll, Xavier; Tarragona Romero, Sonia (2003)
Article
Accés obertGiven an orbit space $M/\Gamma$ and an equivalence relation defined in it by means of the action of a group $G$, we obtain a miniversal deformation of an orbit through a miniversal deformation in $M$ with regard to a ... -
Versal deformations in orbit spaces of matrices
Puerta Sales, Ferran; Puerta Coll, Xavier; Tarragona Romero, Sonia (2002)
Article
Accés obertGiven an orbit space of matrices $M/\Gamma$ and an equivalence relation defined in it by means of the action of a group $G$, we obtain a miniversal deformation of an orbit through a minivesal deformation in $M$ with regard ...