Zobrazeno 1 - 10
of 300
pro vyhledávání: '"Giller, S."'
Publikováno v:
Phys.Lett.B655:80-83,2007
It is argued that the twisted gauge theory is consistent provided it exhibits also the standard noncommutative gauge symmetry.
Comment: 7 pages, no figures;two references added
Comment: 7 pages, no figures;two references added
Externí odkaz:
http://arxiv.org/abs/hep-th/0701014
Publikováno v:
Phys.Rev. D72 (2005) 067702
The global counterpart of infinitesimal symmetries of noncommutative space-time is discussed.
Comment: 7 pages, no figures; minor changes in the bibliography; final version accepted for publication in Phys. Rev.D
Comment: 7 pages, no figures; minor changes in the bibliography; final version accepted for publication in Phys. Rev.D
Externí odkaz:
http://arxiv.org/abs/hep-th/0507054
Publikováno v:
Phys.Lett. B622 (2005) 192-197
We consider the deformed Poincare group describing the space-time symmetry of noncommutative field theory. It is shown how the deformed symmetry is related to the explicit symmetry breaking.
Comment: 7 pages, no figures, final version, accepted
Comment: 7 pages, no figures, final version, accepted
Externí odkaz:
http://arxiv.org/abs/hep-th/0504132
The quantum dynamical systems of identical particles admitting an additional integral quadratic in momenta are considered. It is found that an appropriate ordering procedure exists which allows to convert the classical integrals into their quantum co
Externí odkaz:
http://arxiv.org/abs/nlin/0407064
The dynamical systems of identical particles admitting quadratic integrals of motion are classified. The relevant integrals are explicitly constructed and their relation to separation of variables in H-J equation is clarified.
Comment: 6 pages,
Comment: 6 pages,
Externí odkaz:
http://arxiv.org/abs/nlin/0407065
The set of linear, differential operators preserving the vector space of couples of polynomials of degrees n and n-2 in one real variable leads to an abstract associative graded algebra A(2). The irreducible, finite dimensional representations of thi
Externí odkaz:
http://arxiv.org/abs/solv-int/9612009
Some properties of central extensions of 2+1 dimensional Galilei group are discussed. It is shown that certain families of extensions are isomorphic. An interpretation of new nontrivial cocycle is offered. A few bibliographical remarks are included.<
Externí odkaz:
http://arxiv.org/abs/q-alg/9508020
The quantum Galilei group $G_{\varkappa}$ is defined. The bicrossproduct structure of $G_{\varkappa}$ and the corresponding Lie algebra is revealed. The projective representations for the two-dimensional quantum Galilei group are constructed.
Co
Co
Externí odkaz:
http://arxiv.org/abs/q-alg/9505007
The Galilean invariance in three dimensional space-time is considered. It appears that the Galilei group in 2+1 dimensions posses a three-parameter family of projective representations. Their physical interpretation is discussed in some detail.
Externí odkaz:
http://arxiv.org/abs/hep-th/9503046
Fourdimensional bicovariant differential calculus on quantum E(2) group is constructed.
Comment: 8 pages, amstex
Comment: 8 pages, amstex
Externí odkaz:
http://arxiv.org/abs/q-alg/9501011