Results 21 to 30 of about 110,516 (135)

On the Relationship between Two Notions of Compatibility for Bi-Hamiltonian Systems [PDF]

open access: yes, 2015
Bi-Hamiltonian structures are of great importance in the theory of integrable Hamiltonian systems. The notion of compatibility of symplectic structures is a key aspect of bi-Hamiltonian systems.
Santoprete, Manuele
core   +3 more sources

Toeplitz Operators, K\"ahler Manifolds, and Line Bundles [PDF]

open access: yes, 2007
This is a survey paper. We discuss Toeplitz operators in K\"ahler geometry, with applications to geometric quantization, and review some recent developments.Comment: This is a contribution to the Proceedings of the 2007 Midwest Geometry Conference in ...
Foth, Tatyana
core   +3 more sources

The Symplectic Geometry of Polygons in the 3-Sphere [PDF]

open access: yesCanadian Journal of Mathematics - Journal Canadien de Mathematiques, 2000
We study the symplectic geometry of the moduli spaces ${{M}_{r}}={{M}_{r}}\left( {{\mathbb{S}}^{3}} \right)$ of closed $n$ -gons with fixed side-lengths in the 3-sphere.
T. Treloar
semanticscholar   +1 more source

From double Lie groupoids to local Lie 2-groupoids [PDF]

open access: yes, 2011
We apply the bar construction to the nerve of a double Lie groupoid to obtain a local Lie 2-groupoid. As an application, we recover Haefliger's fundamental groupoid from the fundamental double groupoid of a Lie groupoid.
A. Dold   +17 more
core   +3 more sources

Non-commutative Symplectic Geometry, Quiver varieties,$\,$ and$\,$ Operads [PDF]

open access: yes, 2000
Quiver varieties have recently appeared in various different areas of Mathematics such as representation theory of Kac-Moody algebras and quantum groups, instantons on 4-manifolds, and resolutions Kleinian singularities.
V. Ginzburg
semanticscholar   +1 more source

Nonrational, nonsimple convex polytopes in symplectic geometry [PDF]

open access: yes, 2002
In this research announcement we associate to each convex polytope, possibly nonrational and nonsimple, a family of compact spaces that are stratified by quasifolds, i.e. the strata are locally modelled by $\R^k$ modulo the action of a discrete, possibly
Battaglia, Fiammetta, Prato, Elisa
core   +3 more sources

Compactness results in Symplectic Field Theory

open access: yes, 2003
This is one in a series of papers devoted to the foundations of Symplectic Field Theory sketched in [Y Eliashberg, A Givental and H Hofer, Introduction to Symplectic Field Theory, Geom. Funct. Anal. Special Volume, Part II (2000) 560--673].
Bourgeois, F   +4 more
core   +5 more sources

A time-extended Hamiltonian formalism

open access: yes, 1998
A Poisson structure on the time-extended space R x M is shown to be appropriate for a Hamiltonian formalism in which time is no more a privileged variable and no a priori geometry is assumed on the space M of motions.
Asorey   +17 more
core   +1 more source

On the geometry of almost $\mathcal{S}$-manifolds [PDF]

open access: yes, 2011
An $f$-structure on a manifold $M$ is an endomorphism field $\phi$ satisfying $\phi^3+\phi=0$. We call an $f$-structure {\em regular} if the distribution $T=\ker\phi$ is involutive and regular, in the sense of Palais.
Fitzpatrick, Sean
core   +3 more sources

Vector bundles on bielliptic surfaces: Ulrich bundles and degree of irrationality

open access: yesMathematische Nachrichten, EarlyView.
Abstract This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces S$S$, which depends on the topological type of S$S$. In doing so, we study the weak Brill–Noether property for moduli spaces of sheaves with isotropic Mukai vector. Adapting an idea of Moretti
Edoardo Mason
wiley   +1 more source

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