Listar por autor "Pires, Ana Rita"
Mostrando ítems 1-4 de 4
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Codimension one symplectic foliations and regular Poisson manifolds
Guillemin, Victor; Miranda Galcerán, Eva; Pires, Ana Rita (2010)
Report de recerca
Acceso abiertoIn this short note we give a complete characterization of a certain class of compact corank one Poisson manifolds, those equipped with a closed one-form defining the symplectic foliation and a closed two-form extending ... -
Convexity for Hamiltonian torus actions on b-symplectic manifolds
Guillemin, Victor; Miranda Galcerán, Eva; Pires, Ana Rita; Scott, Geoffrey (2017)
Artículo
Acceso abierton [GMPS] we proved that the moment map image of a b-symplectic toric manifold is a convex b-polytope. In this paper we obtain convexity results for the more general case of non-toric hamiltonian torus actions on b-symplectic ... -
Convexity for Hamiltonian torus actions on b-symplectic manifolds
Guillemin, Victor; Miranda Galcerán, Eva; Pires, Ana Rita; Scott, Geoffrey (2014-12)
Report de recerca
Acceso abiertoIn [GMPS] we proved that the moment map image of a b-symplectic toric manifold is a convex b-polytope. In this paper we obtain convexity results for the more general case of non-toric hamiltonian torus actions on b-symplectic ... -
Toric actions on b-symplectic manifolds
Miranda Galcerán, Eva; Pires, Ana Rita; Guillemin, Victor; Scott, Geoffrey (2013)
Report de recerca
Acceso abiertoWe study Hamiltonian actions on b-symplectic manifolds with a focus on the e ective case of half the dimension of the manifold. In particular, we prove a Delzant-type theorem that classi es these manifolds using polytopes ...