English
Related papers

Related papers: Partial Dirac structures in infinite dimension

200 papers

In this paper, for a given finitely generated algebra (an algebraic structure with arbitrary operations and no predicates) A we study finitely generated limit algebras of A, approaching them via model theory and algebraic geometry. Along…

Algebraic Geometry · Mathematics 2008-08-20 E. Daniyarova , A. Myasnikov , V. Remeslennikov

Complex geometry represents a fundamental ingredient in the formulation of the Dirac equation by the Clifford algebra. The choice of appropriate complex geometries is strictly related to the geometric interpretation of the complex imaginary…

High Energy Physics - Theory · Physics 2016-09-06 S. De Leo , WA Rodrigues , J. Vaz

We obtain a lifting property for finite quotients of algebraic groups, and applications to the structure of these groups.

Algebraic Geometry · Mathematics 2015-09-11 Michel Brion

In this note we describe how some objects from generalized geometry appear in the qualitative analysis and numerical simulation of mechanical systems. In particular we discuss double vector bundles and Dirac structures. It turns out that…

Numerical Analysis · Mathematics 2018-07-19 Vladimir Salnikov , Aziz Hamdouni

The covering of the affine symmetry group, a semidirect product of translations and special linear transformations, in $D \geq 3$ dimensional spacetime is considered. Infinite dimensional spinorial representations on states and fields are…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Djordje Sijacki

We introduce the notion of "quasi-symmetric" polynomials, which is a generalization of the notion of symmetry, and is particularly suited to the setting of polynomial rings over finite fields. The properties of this new class of functions…

Number Theory · Mathematics 2007-05-23 Vinay Deolalikar

In this paper we briefly survey the classical problem of understanding which Lie algebras admit a complex structure, put in the broader perspective of almost complex structures with special properties. We focus on the different behavior of…

Differential Geometry · Mathematics 2025-11-14 Lorenzo Sillari , Adriano Tomassini

In this short note we present several infinite dimensional theorems which generalize corresponding facts from the finite dimensional differential inclusions theory.

Functional Analysis · Mathematics 2021-07-19 Evgenii Borisenko , Oleg Zubelevich

We construct a nil algebra over a countable field which has finite but non-zero Gelfand-Kirillov dimension.

Rings and Algebras · Mathematics 2007-05-23 T H Lenagan , Agata Smoktunowicz

Toric quasifolds are highly singular spaces that were first introduced in order to address, from the symplectic viewpoint, the longstanding open problem of extending the classical constructions of toric geometry to those simple convex…

Symplectic Geometry · Mathematics 2024-04-09 Elisa Prato

We study a few basic properties of Banach-Lie groupoids and algebroids, adapting some classical results on finite dimensional Lie groupoids. As an illustration of the general theory, we show that the notion of locally transitive Banach-Lie…

Functional Analysis · Mathematics 2023-03-22 Daniel Beltiţă , Tomasz Goliński , Grzegorz Jakimowicz , Fernand Pelletier

The purpose of this paper is to show how central extensions of (possibly infinite-dimensional) Lie algebras integrate to central extensions of \'etale Lie 2-groups. In finite dimensions, central extensions of Lie algebras integrate to…

Differential Geometry · Mathematics 2015-01-29 Chenchang Zhu , Christoph Wockel

The recent investigation of the gauge structure of extended geometry is generalised to situations when ancillary transformations appear in the commutator of two generalised diffeomorphisms. The relevant underlying algebraic structure turns…

High Energy Physics - Theory · Physics 2020-03-18 Martin Cederwall , Jakob Palmkvist

The description of irreducible finite dimensional representations of finite dimensional solvable Lie superalgebras over complex numbers given by V.~Kac is refined. In reality these representations are not just induced from a polarization…

Representation Theory · Mathematics 2007-05-23 Alexander Sergeev

We present a generalization of the notion of an algebra norm relevant to real finite-dimensional unital associative algebras. Among other things, this leads to a novel set of algebra isomorphism invariants, some of which are computationally…

Rings and Algebras · Mathematics 2023-12-12 Fred Greensite

A new class of infinite dimensional simple Lie algebras over a field with characteristic 0 are constructed. These are examples of non-graded Lie algebras. The isomorphism classes of these Lie algebras are determined. The structure space of…

Quantum Algebra · Mathematics 2007-05-23 Yucai Su

The convenient setting for smooth mappings, holomorphic mappings, and real analytic mappings in infinite dimension is sketched. Infinite dimensional manifolds are discussed with special emphasis on smooth partitions of unity and tangent…

Differential Geometry · Mathematics 2016-09-06 Andreas Kriegl , Peter W. Michor

We introduce the notion of a directed stratification for a finite-dimensional algebra. For algebras that admit such a stratification we characterise the projective resolutions of finitely generated modules and obtain a result for the…

Representation Theory · Mathematics 2011-02-15 Karsten Dietrich

This is an overview of higher structural constructions in physics. The main motivations of our current attempt are as follows: (i) to provide a brief introduction to derived algebraic geometry, (ii) to understand how derived objects…

Algebraic Geometry · Mathematics 2023-07-14 Kadri İlker Berktav

We study the axial anomaly defined on a finite-size lattice by using a Dirac operator which obeys the Ginsparg-Wilson relation. When the gauge group is U(1), we show that the basic structure of axial anomaly on the infinite lattice, which…

High Energy Physics - Lattice · Physics 2010-04-05 Hiroshi Igarashi , Kiyoshi Okuyama , Hiroshi Suzuki