Results 31 to 40 of about 127,864 (101)
On the factorization method in quantum mechanics [PDF]
Proceedings of the First International Workshop on ``Symmetries in
Quantum Mechanics and Quantum Optics''. A. Ballesteros et al (Eds.) Servicio
de Publicaciones de la Universidad de Burgos (Spain), p. 285-299. Burgos,
Spain (1999), 1998 New exactly solvable problems have already been studied by using a modification of the factorization method introduced by Mielnik. We review this method and its connection with the traditional factorization method. The survey includes the discussion on a generalization of the factorization energies used in the traditional Infeld and Hull method.
arxiv
New candidate planetary nebulae in M81 [PDF]
, 2001 A 34 x 34 arcmin field centred on the spiral galaxy M81 has been searched for emission-line objects using the prime focus wide field camera (WFC) of the 2.54 m Isaac Newton Telescope (La Palma, Spain). A total of 171 candidate planetary nebulae (PNe) are found, 54 of which are in common with the ones detected by Jacoby et al. (1989).
arxiv +1 more source
Feuilletage de Hirsch, mesure harmonique, et g-mesure [PDF]
Publicaciones Matem\'aticas del Uruguay, 12:79-85 (2011), 2011 Les feuilletages de Hirsch sont des feuilletages par surfaces de vari\'et\'es compactes ferm\'ees de dimension 3, dont la dynamique transverse est celle d'un endomorphisme du cercle de degr\'e strictement sup\'erieur \`a 1. Le but de cette note est de construire, \`a partir d'une g-mesure associ\'ee \`a un tel endomorphisme, une mesure harmonique sur ...
arxiv
Accessing the innermost regions of Active Galactic Nuclei [PDF]
arXiv, 2006 Very-long-baseline interferometry can image the parsec-scale structure of radio jets, but the accretion disk close to the black hole remains invisible. One way to probe this accretion flow is provided by X-ray flux density monitoring and spectroscopy. Here we report on preliminary results of a multi-band campaign on NGC1052 with the goal of combining ...
arxiv
La crisis y la salud en España y en Europa: ¿Está aumentando la mortalidad?
Salud Colectiva, 2014 RESUMEN En publicaciones recientes se ha sugerido que por efecto de la crisis econó- mica la salud de la población se está deteriorando en Europa, lo que se manifestaría en aumentos de la mortalidad, particularmente en los países donde se están aplicando
José A. Tapia Granados
doaj
Cohomology, Symmetry, and Perfection [PDF]
arXiv, 1992 One of the aims of this paper is to better explain the philosophy behind the computations in [E.Bifet, C.De Concini,C.Procesi Cohomology of Regular Embeddings ] and to place them in a wider conceptual setting. Another aim of the paper is to outline in the last section an ``equivariant'' approach to some key results in the theory of toric varieties. The
arxiv
An approximate global solution to the gravitational field of a perfect fluid in slow rotation [PDF]
Actas de los ERE 1987, Publicaciones del IAC, Serie C, No. 6,
1988, 215-230, 2006 Using the Post-Minkowskian formalism and considering rotation as a perturbation, we compute an approximate interior solution for a stationary perfect fluid with constant density and axial symmetry. A suitable change of coordinates allows this metric to be matched to the exterior metric to a particle with a pole-dipole-quadrupole structure, relating the
arxiv
Revista de la Asociación Odontológica Argentina, 2015 Resumen Objetivo: Presentar los resultados terapéuticos obtenidos por medio de la reducción abierta y fijación interna, aplicando el principio de carga soportada, en el tratamiento de fracturas de mandíbulas atróficas. Casos clínicos: Se llevaron a
Agustín González +3 more
doaj
Elements of the theory of induced representations [PDF]
arXiv, 2001 We analyze the elements characterizing the theory of induced representations of Lie groups, in order to generalize it to quantum groups. We emphasize the geometric and algebraic aspects of the theory, because they are more suitable for generalization in the framework of Hopf algebras. As an example, we present the induced representations of a quantum
arxiv
Sur l'intersection des courants laminaires [PDF]
arXiv, 2003 We try to find a geometric interpretation of the wedge product of positive closed laminar currents in $\mathbb{C}^2$. We say such a wedge product is geometric if it is given by intersecting the disks filling up the currents. Uniformly laminar currents do always intersect geometrically in this sense.
arxiv