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We show the existence of a symplectic structure on the moduli space of the Seiberg-Witten equations on $\Sigma \times \Sigma$ where $\Sigma$ is a compact oriented Riemann surface. To prequantize the moduli space, we construct a Quillen-type…

Mathematical Physics · Physics 2022-03-31 Rukmini Dey

We study the behavior of the modular class of an orientable Poisson manifold and formulate some unimodularity criteria in the semilocal context, around a (singular) symplectic leaf. Our results generalize some known unimodularity criteria…

Symplectic Geometry · Mathematics 2017-10-11 Andrés Pedroza , Eduardo Velasco-Barreras , Yury Vorobiev

We investigate the Poisson-Sigma model on the classical and quantum level. In the classical analysis we show how this model includes various known two-dimensional field theories. Then we perform the calculation of the path integral in a…

High Energy Physics - Theory · Physics 2007-05-23 Allen C. Hirshfeld , Thomas Schwarzweller

Using a supergeometric interpretation of field functionals, we show that for a class of classical field models used for realistic quantum field theoretic models, an infinite-dimensional supermanifold (smf) of classical solutions in…

High Energy Physics - Theory · Physics 2008-02-03 Thomas Schmitt

We develop the theory of Poisson and Dirac manifolds of compact types, a broad generalization in Poisson and Dirac geometry of compact Lie algebras and Lie groups. We establish key structural results, including local normal forms, canonical…

Differential Geometry · Mathematics 2025-04-10 Marius Crainic , Rui Loja Fernandes , David Martínez Torres

We construct a first order local model for Poisson manifolds around a large class of Poisson submanifolds and we give conditions under which this model is a local normal form. The resulting linearization theorem includes as special cases…

Symplectic Geometry · Mathematics 2023-07-18 Rui Loja Fernandes , Ioan Marcut

Poisson sigma models represent an interesting use of Poisson manifolds for the construction of a classical field theory. Their definition in the language of fibre bundles is shown and the corresponding field equations are derived using a…

Differential Geometry · Mathematics 2013-01-14 Jan Vysoky , Ladislav Hlavaty

Motion of a classical particle in 3-dimensional Lobachevsky and Riemann spaces is studied in the presence of an external magnetic field which is analogous to a constant uniform magnetic field in Euclidean space. In both cases three…

Mathematical Physics · Physics 2010-01-12 V. V. Kudryashov , Yu. A. Kurochkin , E. M. Ovsiyuk , V. M. Red'kov

The current algebra of classical non-linear sigma models on arbitrary Riemannian manifolds is analyzed. It is found that introducing, in addition to the Noether current $j_\mu$ associated with the global symmetry of the theory, a composite…

High Energy Physics - Theory · Physics 2009-10-22 M. Forger , J. Laartz , U. Schaeper

We consider surfaces embedded in a Riemannian manifold of arbitrary dimension and prove that many aspects of their differential geometry can be expressed in terms of a Poisson algebraic structure on the space of smooth functions of the…

Differential Geometry · Mathematics 2010-01-13 Joakim Arnlind , Jens Hoppe , Gerhard Huisken

We introduce a new class of Poisson structures on a Riemannian manifold. A Poisson structure in this class will be called a Killing-Poisson structure. The class of Killing-Poisson structures contains the class of symplectic structures, the…

Symplectic Geometry · Mathematics 2007-05-23 M. Boucetta

Symplectic and Poisson structures of certain moduli spaces/Huebschmann,J./ Abstract: Let $\pi$ be the fundamental group of a closed surface and $G$ a Lie group with a biinvariant metric, not necessarily positive definite. It is shown that a…

High Energy Physics - Theory · Physics 2008-02-03 Johannes Huebschmann

The canonical formalism in classical theory of QCD is constructed on a space-like hypersurface. The Poisson bracket on the space-like hypersurface is defined and it plays an important role to describe every algebraic relation in the…

High Energy Physics - Theory · Physics 2015-06-25 Hiroshi Ozaki

A class of two dimensional field theories, based on (generically degenerate) Poisson structures and generalizing gravity-Yang-Mills systems, is presented. Locally, the solutions of the classical equations of motion are given. A general…

High Energy Physics - Theory · Physics 2015-06-26 Peter Schaller , Thomas Strobl

This is the second paper of a series dedicated to the study of Poisson structures of compact types (PMCTs). In this paper, we focus on regular PMCTs, exhibiting a rich transverse geometry. We show that their leaf spaces are integral affine…

Differential Geometry · Mathematics 2019-10-16 Marius Crainic , Rui Loja Fernandes , David Martinez-Torres

Let X be a projective smooth holomorphic Poisson surface, in other words, whose anti-canonical divisor is effective. We show that moduli spaces of certain Bridgeland stable objects on X are smooth. Moreover, we construct Poisson structures…

Algebraic Geometry · Mathematics 2023-06-05 Chunyi Li , Xiaolei Zhao

Let $\Sigma $ be a compact connected and oriented surface with nonempty boundary and let $G$ be a Lie group equipped with a bi-invariant pseudo-Riemannian metric. The moduli space of flat principal $G$-bundles over $\Sigma$ which are…

Differential Geometry · Mathematics 2024-02-20 Daniel Álvarez

We show that the 2d Poisson Sigma Model on a Poisson groupoid arises as an effective theory of the 3d Courant Sigma Model associated to the double of the underlying Lie bialgebroid. This field-theoretic result follows from a Lie-theoretic…

Mathematical Physics · Physics 2023-01-02 Alejandro Cabrera , Miquel Cueca

This thesis studies normal forms for Poisson structures around symplectic leaves using several techniques: geometric, formal and analytic ones. One of the main results (Theorem 2) is a normal form theorem in Poisson geometry, which is the…

Differential Geometry · Mathematics 2013-01-24 Ioan Marcut

We study metric-compatible Poisson structures in the semi-classical limit of noncommutative emergent gravity. Space-time is realized as quantized symplectic submanifold embedded in R^D, whose effective metric depends on the embedding as…

Mathematical Physics · Physics 2014-09-11 Nikolaj Kuntner , Harold Steinacker