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Related papers: Symplectic duality and implosions

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A description of the fundamental degrees of freedom underlying generalized K\"ahler geometry, which separates its holomorphic moduli from its compatible Riemannian metric in a similar way to the K\"ahler case, has been sought since its…

Differential Geometry · Mathematics 2025-03-25 Daniel Álvarez , Marco Gualtieri , Yucong Jiang

In this paper we survey several intersection and non-intersection phenomena appearing in the realm of symplectic topology. We discuss their implications and finally outline some new relations of the subject to algebraic geometry.

Symplectic Geometry · Mathematics 2007-05-23 Paul Biran

This note introduces the construction of relational symplectic groupoids as a way to integrate every Poisson manifold. Examples are provided and the equivalence, in the integrable case, with the usual notion of symplectic groupoid is…

Symplectic Geometry · Mathematics 2015-05-05 Alberto S. Cattaneo , Ivan Contreras

This paper presents a complete symplectic classification of $A_k$ Hamiltonians on $\mathbb R^2$, in the analytic and smooth categories. Precisely, consider the pair $(H, \omega)$ consisting of a Hamiltonian and a symplectic structure on…

Symplectic Geometry · Mathematics 2024-07-03 Nikolay Martynchuk , San Vũ Ngoc

We study higher-degree generalizations of symplectic groupoids, referred to as {\em multisymplectic groupoids}. Recalling that Poisson structures may be viewed as infinitesimal counterparts of symplectic groupoids, we describe "higher''…

Symplectic Geometry · Mathematics 2013-12-24 Henrique Bursztyn , Alejandro Cabrera , David Iglesias

In this paper, we give a construction of certain induced complementary series of the universal covering of the symplectic groups. There are abundant such representations besides those of linear groups. We achieve this by applying invariant…

Representation Theory · Mathematics 2010-05-31 Hongyu He

We proved a new Siegel-Weil formula for orthogonal and symplectic groups, which will be used later to prove a generalization of Siegel-Weil formula for loop groups.

Representation Theory · Mathematics 2019-12-19 Howard Garland , Yongchang Zhu

In this paper we consider symplectic and contact Lie algebras. We define contactization and symplectization procedures and describe its main properties. We also give classification of such algebras in dimensions 3 and 4. The classification…

dg-ga · Mathematics 2008-02-03 Boris Kruglikov

This is an overview article on selected topics in symplectic geometry written for the Handbook of Differential Geometry (volume 2, edited by F.J.E. Dillen and L.C.A. Verstraelen).

Symplectic Geometry · Mathematics 2007-05-23 Ana Cannas da Silva

We give a proof of the Howe duality conjecture in local theta correspondence for symplectic-orthogonal or unitary dual pairs in arbitrary residual characteristic.

Number Theory · Mathematics 2015-06-17 Wee Teck Gan , Shuichiro Takeda

We design new tools to study variants of Total Dual Integrality. As an application, we obtain a geometric characterization of Total Dual Integrality for the case where the associated polyhedron is non-degenerate. We also give sufficient…

Combinatorics · Mathematics 2025-03-12 Bertrand Guenin , Levent Tunçel

In this review paper, we present several results on central extensions of the Lie algebra of symplectic (Hamiltonian) vector fields, and compare them to similar results for the Lie algebra of (exact) divergence free vector fields. In…

Differential Geometry · Mathematics 2021-08-10 Bas Janssens , Cornelia Vizman

We show that the isomorphism between the moduli space of certain parabolic Higgs bundles over an elliptic curve and the Hilbert scheme of n points of the cotangent bundle of the elliptic curve is a symplectomorphism with respect to their…

Algebraic Geometry · Mathematics 2026-05-12 Zelin Jia

This paper investigates the generalizations and applications of weakly $p$-K\"ahler hyperbolic manifolds.

Differential Geometry · Mathematics 2024-11-18 Changpeng Pan

We introduce certain homology and cohomology subgroups for any almost complex structure and study their pureness, fullness and duality properties. Motivated by a question of Donaldson, we use these groups to relate J-tamed symplectic cones…

Symplectic Geometry · Mathematics 2009-09-15 Tian-Jun Li , Weiyi Zhang

We extend the Weil representation of infinite-dimensional symplectic group to a representation a certain category of linear relations.

Representation Theory · Mathematics 2017-03-22 Yury A. Neretin

In recent work, we introduced topological notions of simple normal crossings symplectic divisor and variety, showed that they are equivalent, in a suitable sense, to the corresponding geometric notions, and established a topological…

Symplectic Geometry · Mathematics 2019-08-27 Mohammad Farajzadeh Tehrani , Mark McLean , Aleksey Zinger

Every symplectic Lie algebra with degenerate (including non-abelian nilpotent symplectic Lie algebras) has the structure of a quadratic extension. We give a standard model and describe the equivalence classes on the level of corresponding…

Differential Geometry · Mathematics 2016-09-13 Mathias Fischer

In this note we study the behavior of symplectic cohomology groups under symplectic deformations. Moreover, we show that for compact almost-K\"ahler manifolds $(X,J,g,\omega)$ with $J$ $\mathcal{C}^\infty$-pure and full the space of de Rham…

Symplectic Geometry · Mathematics 2019-01-25 Nicoletta Tardini , Adriano Tomassini

In this paper we study a generalized symplectic fixed point problem, first considered by J. Moser in \cite{M}, from the point of view of some relatively recently discovered symplectic rigidity phenomena. This problem has interesting…

Symplectic Geometry · Mathematics 2008-01-30 Dragomir Dragnev