Exploració per autor "Tien Zung, Nguyen"
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Rigidity of hamiltonian actions on poisson manifolds
Miranda Galcerán, Eva; Tien Zung, Nguyen; Monnier, Philippe (2012)
Article
Accés restringit per política de l'editorial -
Rigidity of Hamiltonian actions on Poisson manifolds
Miranda Galcerán, Eva; Monnier, Philippe; Tien Zung, Nguyen (2011-02-01)
Report de recerca
Accés obertThis paper is about the rigidity of compact group actions in the Poisson context. The main result is that Hamiltonian actions of compact semisimple type are rigid. We prove it via a Nash-Moser normal form theorem for ... -
Singular fibres of the Gelfand-Cetlin system on u(n)
Bouloc, Damien; Miranda Galcerán, Eva; Tien Zung, Nguyen (Royal Society, 2018-10-28)
Article
Accés obertIn this paper, we show that every singular fibre of the Gelfand–Cetlin system on co-adjoint orbits of unitary groups is a smooth isotropic submanifold which is diffeomorphic to a two-stage quotient of a compact Lie group ...