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In this note we introduce and study the almost commuting varieties for the symplectic Lie algebras.

Representation Theory · Mathematics 2021-04-23 Ivan Losev

We give a brief introduction to Hamiltonian optics and Lie algebraic methods. We use these methods to describe the operators governing light propagation, refraction and reflection in phase space. The method offers a systematic way to find…

The symplectic structures on $3$-Lie algebras and metric symplectic $3$-Lie algebras are studied. For arbitrary $3$-Lie algebra $L$, infinite many metric symplectic $3$-Lie algebras are constructed. It is proved that a metric $3$-Lie…

Representation Theory · Mathematics 2014-08-21 Ruipu Bai , Shuangshuang Chen , Rong Cheng

A Lie system is a non-autonomous system of first-order ordinary differential equations describing the integral curves of a non-autonomous vector field taking values in a finite-dimensional real Lie algebra of vector fields, a so-called…

Mathematical Physics · Physics 2022-07-04 Javier de Lucas , Xavier Gràcia , Xavier Rivas , Narciso Román-Roy , Silvia Vilariño

We give an up-to-date overview of geometric and topological properties of cosymplectic and coKaehler manifolds. We also mention some of their applications to time-dependent mechanics.

Differential Geometry · Mathematics 2013-11-22 Beniamino Cappelletti-Montano , Antonio De Nicola , Ivan Yudin

We study a formal symplectic geometry for anticyclic Leibniz operad and its Koszul dual operad.

Quantum Algebra · Mathematics 2014-02-25 K. Uchino

We describe the reduction procedure for a symplectic Lie algebroid by a Lie subalgebroid and a symmetry Lie group. Moreover, given an invariant Hamiltonian function we obtain the corresponding reduced Hamiltonian dynamics. Several examples…

Differential Geometry · Mathematics 2008-04-24 D. Iglesias , J. C. Marrero , D. Martin de Diego , E. Martinez , E. Padron

This is an announcement of results proved in [GGS1], [GGS2], [C], and [CG] where methods from Lie theory were used as new tools for the study of symplectic Lefschetz fibrations.

Symplectic Geometry · Mathematics 2015-04-14 B. Callander , E. Gasparim , L. Grama , L. A. B. San Martin

Many combinatorial problems can be formulated as a polynomial optimization problem that can be solved by state-of-the-art methods in real algebraic geometry. In this paper we explain many important methods from real algebraic geometry, we…

Combinatorics · Mathematics 2014-11-11 Erik Sjöland

We introduce symplectic left Leibniz algebras and symplectic right Leibniz algebras as generalizations of symplectic Lie algebras. These algebras possess a left symmetric product and are Lie-admissible. We describe completely symmetric…

Rings and Algebras · Mathematics 2024-07-23 Fatima-Ezzahrae Abid , Mohamed Boucetta

This article explores some geometric and algebraic properties of the dynamical system which is represented by matrix differential equations arising from inertial navigation problems, such as the symplecticity and the orthogonality.…

Dynamical Systems · Mathematics 2020-02-12 Xin-Long Luo , Geng Sun

The mathematical theory underlying Hamiltonian mechanics is called symplectic geometry. So symplectic geometry arose from the roots of mechanics and is seen as one of the most valuable links between physics and mathematics today. Symplectic…

Symplectic Geometry · Mathematics 2024-04-02 Stefan Goessner

In this paper, we introduce the notion of a pre-symplectic algebroid, and show that there is a one-to-one correspondence between pre-symplectic algebroids and symplectic Lie algebroids. This result is the geometric generalization of the…

Differential Geometry · Mathematics 2018-03-28 Jiefeng Liu , Yunhe Sheng , Chengming Bai

This is a survey article on real algebra and geometry, and in particular on its recent applications in optimization and convexity. We first introduce basic notions and results from the classical theory. We then explain how these relate to…

Algebraic Geometry · Mathematics 2016-06-24 Tim Netzer

We show how one can associate to a given class of finite type G-structures a classifying Lie algebroid. The corresponding Lie groupoid gives models for the different geometries that one can find in the class, and encodes also the different…

Differential Geometry · Mathematics 2008-07-25 Rui Loja Fernandes , Ivan Struchiner

Algebraic geometry for groups and Lie algebraic has been recently defined and studied by many authors on the purpose to study set defined by algebraic equations on abstract groups and Lie algebras. The purpose of this paper is to present a…

Algebraic Geometry · Mathematics 2010-03-03 Tsemo Aristide

This note collects a number of standard statements in Riemannian geometry and in Sobolev-space theory that play a prominent role in analytic approaches to symplectic topology. These include relations between connections and complex…

Symplectic Geometry · Mathematics 2010-12-20 Aleksey Zinger

Symplectic (respectively orthogonal) triple systems provide constructions of Lie algebras (resp. superalgebras). However, in characteristic 3, it is shown that this role can be interchanged and that Lie superalgebras (resp. algebras) can be…

Rings and Algebras · Mathematics 2007-05-23 Alberto Elduque

We apply techniques from symplectic geometry to extend and give a new proof of the complex convexity theorem of Gindikin-Kroetz.

Symplectic Geometry · Mathematics 2007-05-23 Bernhard Kroetz , Michael Otto

We give various realizations of the adjoint orbits of a semi-simple Lie group and describe their symplectic geometry. We then use these realizations to identify a family of Lagrangean submanifolds of the orbits.

Symplectic Geometry · Mathematics 2014-01-13 Elizabeth Gasparim , Lino Grama , Luiz A. B. San Martin