Buscar
Mostrando ítems 351-360 de 434
Representación del álgebra de Heisenberg en variedades Riemannianas
(Universidad Michoacana de San Nicolás de Hidalgo, 2006-11)
The objective of this work is to review the development of a general construction of the representations of Heisenberg algebra in arbitrary Riemannian manifolds. The reasons for investigating these aspects of field theory ...
On Sectional-Hyperbolic Sets
(Bogotá - Ciencias - Doctorado en Ciencias - MatemáticasDepartamento de MatemáticasUniversidad Nacional de Colombia - Sede Bogotá, 2020-07-19)
Sea M una variedad compacta Rimeniana de dimensión mayor o igual que tres. Dado X un campo vectorial C1 , transversal hacia el interior en la frontera (si no es vacı́a), llamamos Xt el flujo inducido sobre M .
Un ...
Non-linear modal analysis for beams subjected to axial loads: Analytical and finite-element solutions
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
A rigorous derivation of non-linear equations governing the dynamics of an axially loaded beam is given with a clear focus to develop robust low-dimensional models. Two important loading scenarios were considered, where a ...
Non-Riemannian geometry, Born–Infeld models and trace free gravitational equations
(Elsevier B.V., 2017-08)
Non-Riemannian generalization of the standard Born–Infeld (BI) Lagrangian is introduced and analyzed from a theory of gravitation with dynamical torsion field. The field equations derived from the proposed action lead to ...