Buscar
Mostrando ítems 21-30 de 2627
A física de partículas elementares e o Prêmio Nobel de física 2008
(2008-10-01)
The 2008 Nobel prize of physics pay tribute to three theoretical physicist by their work related to some symmetries of Nature. We briefly comments the importance of these works and the context in which they were done. ...
Symmetry analysis of the bidimensional Lane-Emden systems
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2012)
On stabilization of Maxwell-BMS algebra
(Springer, 2021)
Discrete symmetries, invisible axion, and lepton number symmetry in an economic 3-3-1 model
(2003-01-01)
We show that Peccei-Quinn and lepton number symmetries can be a natural outcome in a 3-3-1 model with right-handed neutrinos after imposing a [Formula Presented] symmetry. This symmetry is suitably accommodated in this ...
Discrete symmetries, invisible axion, and lepton number symmetry in an economic 3-3-1 model
(American Physical Soc, 2003-12-01)
We show that Peccei-Quinn and lepton number symmetries can be a natural outcome in a 3-3-1 model with right-handed neutrinos after imposing a Z(11)circle timesZ(2) symmetry. This symmetry is suitably accommodated in this ...
The sigma-isotypic decomposition and the sigma-index of reversible-equivariant systems
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
This work is concerned with dynamical systems in presence of symmetries and reversing symmetries. We describe a construction process of subspaces that are invariant by linear Gamma-reversible-equivariant mappings, where ...
ON SYMMETRIES OF PQ-HYPERELLIPTIC RIEMANN SURFACES
(Universidad Católica del Norte, Departamento de Matemáticas, 2006)
SINGULARITY THEORY AND FORCED SYMMETRY BREAKING IN EQUATIONS
(UNIV AUTONOMA BARCELONA, 2010)
A theory of bifurcation equivalence for forced symmetry breaking bifurcation problems is developed. We classify (O(2), 1) problems of corank 2 of low codimension and discuss examples of bifurcation problems leading to such ...
Gravitation and duality symmetry
(World Scientific Publ Co Pte Ltd, 2005-09-01)
By generalizing the Hodge dual operator to the case of soldered bundles, and working in the context of the teleparallel equivalent of general relativity, an analysis of the duality symmetry in gravitation is performed. ...
QCD chiral symmetry restoration with a large number of quarks in a model with a confining propagator and dynamically massive gluons
(Elsevier B.V., 2015-05-11)
Considering a QCD chiral symmetry breaking model where the gap equation contains an effective confining propagator and a dressed gluon propagator with a dynamically generated mass, we verify that the chiral symmetry is ...