Buscar
Mostrando ítems 11-20 de 2230
A geometric singular perturbation theory approach to constrained differential equations
(2019-04-01)
This paper is concerned with a geometric study of (n−1)-parameter families of constrained differential systems, where n≥ 2. Our main results say that the dynamics of such a family close to the impasse set is equivalent ...
Structure formation in the presence of dark energy perturbations
(Iop Publishing Ltd, 2007-11-01)
We study non-linear structure formation in the presence of dark energy. The influence of dark energy on the growth of large-scale cosmological structures is exerted both through its background effect on the expansion rate, ...
Structure formation in the presence of dark energy perturbations
(Iop Publishing Ltd, 2007-11-01)
We study non-linear structure formation in the presence of dark energy. The influence of dark energy on the growth of large-scale cosmological structures is exerted both through its background effect on the expansion rate, ...
The kondo problem for very dilute ZnMn alloys under a Doorway State perturbation approach
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
The tension as perturbative parameter in string theory
(1990-12-01)
The author proposes an approach to string theory where the zero-order theory is the null string. An explicit form of the propagator for the null string in the momentum space is found. Considering the tension as a perturbative ...