We generalize a theorem of Delzant classifying compact connected symplectic manifolds with completely integrable torus actions to certain singular symplectic spaces. The assumption on singularities is that if they are not finite quotient then they are isolated.
机构:
Pontificia Univ Catolica Rio de Janeiro, Matemat, Rua Marques Sao Vicente 225, Rio de Janeiro, Brazil
HSE Univ, Fac Math, 6 Usacheva Str, Moscow 119048, RussiaPontificia Univ Catolica Rio de Janeiro, Matemat, Rua Marques Sao Vicente 225, Rio de Janeiro, Brazil
Galkin, Sergey
Mikhalkin, Grigory
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机构:
Univ Geneva, Math, Rue Conseil Gen 7-9, CH-1205 Geneva, SwitzerlandPontificia Univ Catolica Rio de Janeiro, Matemat, Rua Marques Sao Vicente 225, Rio de Janeiro, Brazil
机构:
Univ Bologna, Dipartimento Matemat, Piazza Porta San Donato 5, I-40126 Bologna, ItalyUniv Bologna, Dipartimento Matemat, Piazza Porta San Donato 5, I-40126 Bologna, Italy