Buscar
Mostrando ítems 11-20 de 104
Estructuras localmente conformes Kähler y localmente conformes simplécticas en solvariedades compacta
(2017-03)
En esta tesis estudiamos las estructuras localmente conformes Kähler (LCK) y localmente conformes simplécticas (LCS) invariantes a izquierda en grupos de Lie, o equivalentemente tales estructuras en álgebras de Lie.
Luego ...
Position-dependent effective mass Dirac equations with PT-symmetric and non-PT-symmetric potentials
(Iop Publishing Ltd, 2006-09-22)
We present a new procedure to construct the one-dimensional non-Hermitian imaginary potential with a real energy spectrum in the context of the position-dependent effective mass Dirac equation with the vector-coupling ...
Position-dependent effective mass Dirac equations with PT-symmetric and non-PT-symmetric potentials
(Iop Publishing Ltd, 2006-09-22)
We present a new procedure to construct the one-dimensional non-Hermitian imaginary potential with a real energy spectrum in the context of the position-dependent effective mass Dirac equation with the vector-coupling ...
On coloring problems with local constraints
(Elsevier, 2012-04)
We deal with some generalizations of the graph coloring problem on classes of perfect graphs. Namely we consider the μ-coloring problem (upper bounds for the color on each vertex), the precoloring extension problem (a ...
Global and concrete quantizations on general type I groups
(Springer-Verlag Wien, 2019)
In recent papers and books, a global quantization has been developed for unimodular groups of type I. It involves operator-valued symbols defined on the product between the group G and its unitary dual G^ , composed of ...
Proximal Gauss-Newton method
In this chapter we extend the solvability of penalized nonlinear least squares problems using the proximal Gauss–Newton method. Moreover, a numerical example validating the theoretical results is also presented.
Predicting EHL film thickness parameters by machine learning approaches
(2022)
Non-dimensional similarity groups and analytically solvable proximity equations can be used to estimate integral fluid film parameters of elastohydrodynamically lubricated (EHL) contacts. In this contribution, we demonstrate ...
Resolubilidade local para duas classes de campos de vetores suaves complexos
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Matemática - PPGMCâmpus São Carlos, 2016-07-28)
This work study complex linear partial differential operators of order one without
having terms of zero order (complex vector fields). We have established a necessary and
suficient condition for local solvability of a ...
Multistable behavior above synchronization in a locally coupled Kuramoto model
(AMER PHYSICAL SOC, 2011)
A system of nearest neighbors Kuramoto-like coupled oscillators placed in a ring is studied above the critical synchronization transition. We find a richness of solutions when the coupling increases, which exists only ...
Multistable behavior above synchronization in a locally coupled Kuramoto model
(Amer Physical Soc, 2011-06-14)
A system of nearest neighbors Kuramoto-like coupled oscillators placed in a ring is studied above the critical synchronization transition. We find a richness of solutions when the coupling increases, which exists only ...