Výsledky vyhledávání - "Charton, Isabelle"

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Monotone Symplectic Six-Manifolds that admit a Hamiltonian GKM Action are diffeomorphic to Smooth Fano Threefolds

Let $(M,\omega)$ be a compact symplectic manifold with a Hamiltonian GKM action of a compact torus. We formulate a positive condition on the space; this condition is satisfied if the underlying symplectic manifold is monotone. The main result of this

Externí odkaz: http://arxiv.org/abs/2308.10541

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Compact monotone tall complexity one $T$-spaces

Autor: Charton, Isabelle, Sabatini, Silvia, Sepe, Daniele

In this paper we study compact monotone tall complexity one $T$-spaces. We use the classification of Karshon and Tolman, and the monotone condition, to prove that any two such spaces are isomorphic if and only if they have equal Duistermaat-Heckman m

Externí odkaz: http://arxiv.org/abs/2307.04198

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Toric one-skeletons for complexity-one spaces

Autor: Charton, Isabelle

A complexity-one space is a compact symplectic manifold $(M, \omega)$ endowed with an effective Hamiltonian action of a torus $T$ of dimension $\frac{1}{2}\dim(M)-1$. In this note we prove that for a certain class of complexity-one spaces the Poincar

Externí odkaz: http://arxiv.org/abs/2001.11386

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Hamiltonian S^1-spaces with large equivariant pseudo-index

Autor: Charton, Isabelle

Let $(M,\omega)$ be a compact symplectic manifold of dimension $2n$ endowed with a Hamiltonian circle action with only isolated fixed points. Whenever $M$ admits a toric $1$-skeleton $\mathcal{S}$, which is a special collection of embedded

Externí odkaz: http://arxiv.org/abs/1903.03668

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