Results 41 to 50 of about 178 (165)

Schwarzian quantum mechanics as a Drinfeld-Sokolov reduction of BF theory

open access: yesJournal of High Energy Physics, 2020
We give an interpretation of the holographic correspondence between two-dimensional BF theory on the punctured disk with gauge group PSL(2, ℝ) and Schwarzian quantum mechanics in terms of a Drinfeld-Sokolov reduction.
Fridrich Valach, Donald R. Youmans
doaj   +1 more source

The generalized centrally extended Lie algebraic structures and related integrable heavenly type equations

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
There are studied Lie-algebraic structures of a wide class of heavenly type non-linear integrable equations, related with coadjoint flows on the adjoint space to a loop vector field Lie algebra on the torus.
O.Ye. Hentosh   +2 more
doaj   +1 more source

Algebraic proofs for shallow water bi–Hamiltonian systems for three cocycle of the semi-direct product of Kac–Moody and Virasoro Lie algebras

open access: yesOpen Mathematics, 2018
We prove new theorems related to the construction of the shallow water bi-Hamiltonian systems associated to the semi-direct product of Virasoro and affine Kac–Moody Lie algebras.
Zuevsky A.
doaj   +1 more source

THE EXPLICIT FORMULAS OF PARAMETRIZATION OF COADJOINT ORBITS OF THE HEISENBERG LIE GROUP

open access: yesBarekeng
This research focuses on the Heisenberg Lie group. The aim is to determine the coadjoint orbits and their parametrizations. The method used in this research involves constructing the parametrization of coadjoint orbit for Heisenberg Lie group ...
Muhammad Zaky Zachary   +2 more
doaj   +1 more source

Kinematic space and the orbit method

open access: yesJournal of High Energy Physics, 2019
Kinematic space has been defined as the space of codimension-2 spacelike extremal surfaces in anti de Sitter (AdS d+1) spacetime which, by the Ryu-Takayanagi proposal, compute the entanglement entropy of spheres in the boundary CFT d .
Robert F. Penna, Claire Zukowski
doaj   +1 more source

A Trace Formula for the Quantization of Coadjoint Orbits [PDF]

open access: yesInternational Mathematics Research Notices, 2015
The main goal of this paper is to compute the characteristic class of the Alekseev-Lachowska *-product on coadjoint orbits. We deduce an analogue of the Weyl dimension formula in the context of deformation quantization.
Calaque, Damien, Näf, Florian
openaire   +2 more sources

On the Coadjoint Orbits of the Unitriangular Group

open access: yesJournal of Algebra, 1996
This paper is a continuation of another work of the author [J. Algebra 176, No. 3, 959-1000 (1995; Zbl 0837.20050)]. Let \(U_n(K)\) be the group of all \(n\times n\) unipotent upper triangular matrices with coefficients in an algebraically closed field \(K\). Let \(u_n(K)\) denote the Lie algebra of all \(n\times n\) nilpotent upper triangular matrices
openaire   +1 more source

LIOUVILLE THEORY AND SPECIAL COADJOINT VIRASORO ORBITS [PDF]

open access: yesInternational Journal of Modern Physics A, 1995
We describe the Hamiltonian reduction of the coadjoint Kac–Moody orbits to the Virasoro coadjoint orbits explicitly in terms of the Lagrangian approach for the Wess–Zumino–Novikov–Witten theory. While a relation of the coadjoint Virasoro orbit Diff S1/ SL (2, R) to the Liouville theory has already been studied, we analyze the role of special coadjoint
Gorsky, A., Johansen, A.
openaire   +3 more sources

Quantization of BMS3 orbits: A perturbative approach

open access: yesNuclear Physics B, 2016
We compute characters of the BMS group in three dimensions. The approach is the same as that performed by Witten in the case of coadjoint orbits of the Virasoro group in the eighties, within the large central charge approximation.
Alan Garbarz, Mauricio Leston
doaj   +1 more source

Decorated Nonlinear Flags, Pointed Vortex Loops and the Dihedral Group

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science
We identify pointed vortex loops in the plane with low dimensional nonlinear flags decorated with volume forms. We show how submanifolds of such decorated nonlinear flags can be identified with coadjoint orbits of the area pre- serving diffeomorphism ...
Ciuclea Ioana
doaj   +1 more source

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