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This is a local version of math.AG/0506534. We shall deal with the deformation of a convex symplectic variety $X$ instead of a projective one. The usual deformation does not work well in the convex case. Instead, we regard $X$ as a Poisson…

Algebraic Geometry · Mathematics 2008-08-07 Yoshinori Namikawa

We review recent results and ongoing investigations of the symplectic and Poisson geometry of derived moduli spaces, and describe applications to deformation quantization of such spaces.

Algebraic Geometry · Mathematics 2016-03-10 T. Pantev , G. Vezzosi

In this paper, we study obstructed and unobstructed (holomorphic) Poisson deformations with classical examples in deformation theory.

Algebraic Geometry · Mathematics 2016-04-19 Chunghoon Kim

In these notes we provide the foundation for the deformation theoretic parts of arXiv:0807.3753 and arXiv:math/0102005.

Rings and Algebras · Mathematics 2010-10-07 Michel Van den Bergh

We describe the space of Poisson bivectors near a log-symplectic structure up to small diffeomorphisms.

Symplectic Geometry · Mathematics 2014-06-12 Ioan Marcut , Boris Osorno Torres

Our paper develops a theory of Poisson slices and a uniform approach to their partial compactifications. The theory in question is loosely comparable to that of symplectic cross-sections in real symplectic geometry.

Symplectic Geometry · Mathematics 2020-08-18 Peter Crooks , Markus Röser

We develop the deformation theory of symplectic foliations, i.e. regular foliations equipped with a leafwise symplectic form. The main result of this paper is that each symplectic foliation has an attached $L_\infty$-algebra controlling its…

Symplectic Geometry · Mathematics 2022-04-26 Stephane Geudens , Alfonso G. Tortorella , Marco Zambon

We introduce new invariants associated to collections of compact subsets of a symplectic manifold. They are defined through an elementary-looking variational problem involving Poisson brackets. The proof of the non-triviality of these…

Symplectic Geometry · Mathematics 2015-03-19 Lev Buhovsky , Michael Entov , Leonid Polterovich

In this paper, we study deformations of nonsingular Poisson varieties, deformations of Poisson invertible sheaves and simultaneous deformations of nonsingular Poisson varieties and Poisson invertible sheaves, which extend flat deformation…

Algebraic Geometry · Mathematics 2020-10-21 Chunghoon Kim

This contains a list of (mostly very minor) corrections to the book Introduction to Symplectic Topology, Clarendon Press, Oxford, (1995), together with rewritten versions of two lemmas and some additional comments.

dg-ga · Mathematics 2008-02-03 Dusa McDuff , Dietmar Salamon

A list of open problems on holomorphic symplectic, contact and Poisson manifolds.

Algebraic Geometry · Mathematics 2010-02-24 Arnaud Beauville

Survey article on the geometry of spherical varieties. Invited survey for Transformation Groups.

Algebraic Geometry · Mathematics 2012-11-07 Nicolas Perrin

In this paper, we study deformations of compact holomorphic Poisson submanifolds which extend Kodaira's series of papers on semi-regularity (deformations of compact complex submanifolds of codimension 1), deformations of compact complex…

Algebraic Geometry · Mathematics 2015-08-18 Chunghoon Kim

We show that Poisson fibrations integrate to a special kind of symplectic fibrations, called fibered symplectic groupoids.

Differential Geometry · Mathematics 2007-05-23 Olivier Brahic , Rui Loja Fernandes

In this thesis, we study deformations of compact holomorphic Poisson manifolds and algebraic Poisson schemes in the framework of Kodaira-Spencer's analytic deformation theory and Grothendieck's algebraic deformation theory.

Algebraic Geometry · Mathematics 2014-03-10 Chunghoon Kim

We shall prove that the Poisson deformation functor of an affine (singular) symplectic variety is unobstructed. As a corollary, we prove the following result. Theorem: For an affine symplectic variety $X$ with a good $C^*$-action (where its…

Algebraic Geometry · Mathematics 2019-12-19 Yoshinori Namikawa

We provide local formul{\ae} for Poisson bivectors and symplectic forms on the leaves of Poisson structures associated to wrinkled fibrations on smooth $4$--manifolds.

Symplectic Geometry · Mathematics 2024-04-08 P. Suárez-Serrato , J. Torres Orozco

We study the Farrell and Jones Warping Deformation.

Differential Geometry · Mathematics 2016-03-22 Pedro Ontaneda

An error in the paper [J. Math. Phys. 43, 6343 (2002); math-ph/0207009] is corrected. Further explanation is given.

Mathematical Physics · Physics 2015-06-26 Ali Mostafazadeh

Correction to The Annals of Probability 21 (1993) 554--580 [http://projecteuclid.org/euclid.aop/1176989415]

Probability · Mathematics 2008-09-26 Paul Dupuis , Hitoshi Ishii
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