Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Bratchikov, A. V."'
Autor:
Bratchikov, A. V.
Publikováno v:
J Algebra Appl Vol. 16, No. 1 (2017) 1750005
We construct a family of subalgebras of the Gerstenhaber algebra of differential operators. The subalgebras are labeled by subsets of the additive group ${\mathbb Z}^n$ that are closed under addition. Each subalgebra is invariant under the Hochschild
Externí odkaz:
http://arxiv.org/abs/1411.4968
Autor:
Bratchikov, A. V.
We give a solution to the classical master equation of the Hamiltonian BRST-anti-BRST quantization scheme in the case of reducible gauge theories. Our approach does not require redefining constraints or reducibility functions. Classical BRST observab
Externí odkaz:
http://arxiv.org/abs/1409.7379
Autor:
Bratchikov, A. V.
Publikováno v:
Mod. Phys. Lett. A, Vol. 27, No. 30 (2012) 1250170
An explicit solution to classical master equations of the Sp(2)-symmetric Hamiltonian BRST quantization scheme is presented in the case of irreducible gauge theories. A realization of the observable algebra is constructed.
Comment: 12 pages, v2:
Comment: 12 pages, v2:
Externí odkaz:
http://arxiv.org/abs/1206.3453
Autor:
Bratchikov, Andrei V.
We study the construction of the classical Becchi-Rouet-Stora-Tyutin (BRST) charge and observables for arbitrary reducible gauge theory. Using a special coordinate system in the extended phase space, we obtain an explicit expression for the Koszul-Ta
Externí odkaz:
http://arxiv.org/abs/1203.1937
Autor:
Bratchikov, A. V.
Publikováno v:
Eur.Phys.J.C Vol.72, (2012), 2031
We give the general solution to the classical master equation (S,S)=0 for reducible gauge theories. To this aim, we construct a new coordinate system in the extended configuration space and transform the equation by changing variables. Then it can be
Externí odkaz:
http://arxiv.org/abs/1111.2861
Autor:
Bratchikov, A. V.
Publikováno v:
Int.J.Geom.Meth. Mod.Phys. Vol.10, 1220028 (2013)
The problem of finding a generic star product on R^n is reduced to the computation of a skew-symmetric biderivation.
Comment: 8 pages; v3: title changed, minor corrections, accepted for publication in Int.J.Geom.Meth.Mod.Phys
Comment: 8 pages; v3: title changed, minor corrections, accepted for publication in Int.J.Geom.Meth.Mod.Phys
Externí odkaz:
http://arxiv.org/abs/1103.5213
Autor:
Bratchikov, A. V.
Publikováno v:
Cent.Eur.J.Phys.10(1) (2012) 61-65
We give an explicit formula for the Becchi-Rouet-Stora-Tyutin (BRST) charge associated with Poisson superalgebras. To this end, we split the master equation for the BRST charge into a pair of equations such that one of them is equivalent to the origi
Externí odkaz:
http://arxiv.org/abs/1103.2680
Autor:
Bratchikov, A. V.
For noncommutative variables x,y an expansion of log(exp(x)exp(y)) in powers of x+y is obtained.Each term of the series is given by an infinite sum in powers of x-y.The series is represented by diagrams.
Comment: 6 pages
Comment: 6 pages
Externí odkaz:
http://arxiv.org/abs/0912.0486
Autor:
Bratchikov, A. V.
A solution of the Einstein vacuum field equations is constructed within the contex of perturbation theory. The solution possesses a graphical representation in terms of diagrams.
Comment: 6 pages
Comment: 6 pages
Externí odkaz:
http://arxiv.org/abs/0911.1977
Autor:
Bratchikov, A. V.
For a wide class of nonlinear equations a perturbative solution is constructed. This class includes equations of motion of field theories. The solution possesses a graphical representation in terms of diagrams. To illustrate the formalism we consider
Externí odkaz:
http://arxiv.org/abs/0910.3429