English
Related papers

Related papers: Traces for star products on symplectic manifolds

200 papers

In this work one proves that, around each point of a dense open set (regular points), a real analytic or holomorphic bihamiltonian structure decomposes into a product of a Kronecker bihamiltonian structure and a symplectic one if a…

Symplectic Geometry · Mathematics 2011-07-13 Francisco-Javier Turiel

Can a given Lagrangian submanifold be realized as the fixed point set of an anti-symplectic involution? If so, it is called \emph{real}. We give an obstruction for a closed Lagrangian submanifold to be real in terms of the displacement…

Symplectic Geometry · Mathematics 2020-05-20 Joé Brendel

We find a necessary and sufficient conditions for the simplicity and uniqueness of trace for reduced free products of finite families of finite dimensional $C^*$-algebras with specified traces on them.

Operator Algebras · Mathematics 2007-05-23 Nikolay A Ivanov

In this paper we obtain exact normal forms with functional invariants for local diffeomorphisms, under the action of the symplectomorphism group in the source space. Using these normal forms we obtain exact classification results for the…

Symplectic Geometry · Mathematics 2019-02-20 Konstantinos Kourliouros

Let $M$ be a compact symplectic manifold on which a compact torus $T$ acts Hamiltonialy with a moment map $\mu$. Suppose there exists a symplectic involution $\theta:M\to M$, such that $\mu\circ\theta=-\mu$. Assuming that 0 is a regular…

Symplectic Geometry · Mathematics 2014-01-09 Semyon Alesker , Maxim Braverman

We prove a version of Gromov's compactness theorem for pseudo-holomorphic curves which holds locally in the target symplectic manifold. This result applies to sequences of curves with an unbounded number of free boundary components, and in…

Symplectic Geometry · Mathematics 2014-11-11 Joel W. Fish

We address the problem of computing the smallest symplectic eigenvalues and the corresponding eigenvectors of symmetric positive-definite matrices in the sense of Williamson's theorem. It is formulated as minimizing a trace cost function…

Optimization and Control · Mathematics 2022-01-06 Nguyen Thanh Son , P. -A. Absil , Bin Gao , Tatjana Stykel

We study obstructions to the existence of closed Fedosov's star products on a given K\"ahler manifold. In our previous paper, we proved that the Levi-Civita connection of a K\"ahler manifold will produce a closed (in the sense of…

Symplectic Geometry · Mathematics 2016-12-12 Laurent La Fuente-Gravy

In this article, motivated by the study of symplectic structures on manifolds with boundary and the systematic study of $b$-symplectic manifolds started in [12], we prove a slice theorem for Lie group actions on $b$-symplectic manifolds.

Symplectic Geometry · Mathematics 2023-06-16 Roisin Braddell , Anna Kiesenhofer , Eva Miranda

We establish trace theorems for function spaces defined on general Ahlfors regular metric spaces $Z$. The results cover the Triebel-Lizorkin spaces and the Besov spaces for smoothness indices $s<1,$ as well as the first order…

Classical Analysis and ODEs · Mathematics 2016-06-29 Eero Saksman , Tomás Soto

A (biased and incomplete) review of the status of the theory of symplectic connections on supermanifolds is presented. Also, some comments regarding Fedosov's technique of quantization are made.

Differential Geometry · Mathematics 2012-05-02 José A. Vallejo

We introduce new invariants of a Riemannian singular space, the local Yamabe and Sobolev constants, and then go on to prove a general version of the Yamabe theorem under that the global Yamabe invariant of the space is strictly less than…

Differential Geometry · Mathematics 2012-10-31 Kazuo Akutagawa , Gilles Carron , Rafe Mazzeo

A stable generalized complex structure is one that is generically symplectic but degenerates along a real codimension two submanifold, where it defines a generalized Calabi-Yau structure. We introduce a Lie algebroid which allows us to view…

Differential Geometry · Mathematics 2023-05-26 Gil R. Cavalcanti , Marco Gualtieri

Let $S$ be a smooth complex connected analytic surface which admits a holomorphic symplectic structure. Let $S^{(n)}$ be its $n$th symmetric product. We prove that every projective symplectic resolution of $S^{(n)}$ is isomorphic to the…

Algebraic Geometry · Mathematics 2007-05-23 Baohua Fu

We prove that there exists at least one close orbit in a given contact hypersurface in some symplectic manifolds.

Symplectic Geometry · Mathematics 2007-05-23 Renyi Ma

We determine infinitesimal star products on Poisson manifolds compatible with coisotropic reduction. This is achieved by computing the second constraint Hochschild cohomology of the constraint algebra of functions associated to any…

Quantum Algebra · Mathematics 2025-01-24 Marvin Dippell

We determine the adjoint trace field of gluings of general hyperbolic manifolds. This provides a new method to prove the nonarithmeticity of gluings, which can be applied to the classical construction of Gromov and Piatetski-Shapiro (and…

Geometric Topology · Mathematics 2019-12-02 Olivier Mila

We assign generalised convolutions (resp. traces) to graphs whose edges are decorated by smooth kernels (resp. smoothing operators) on a closed manifold. To do so, we introduce the concept of TraPs (Traces and Permutations), which roughly…

Combinatorics · Mathematics 2020-05-06 Pierre J. Clavier , Loic Foissy , Sylvie Paycha

Recently, B.-Y. Chen and O. J. Garay studied pointwise slant submanifolds of almost Hermitian manifolds. By using the notion of pointwise slant submanifolds, we investigate the geometry of pointwise semi-slant submanifolds and their warped…

Differential Geometry · Mathematics 2021-01-08 Ion Mihai , Siraj Uddin , Adela Mihai

Given a smooth Riemannian manifold (M,g)we investigate the existence of positive solutions to a singularly perturbed supercritical elliptic equation which concentrate at some submanifold of M. We obtain a posive answer for some manifolds,…

Analysis of PDEs · Mathematics 2014-01-22 Monica Clapp , Marco Ghimenti , Anna Maria Micheletti