oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 1 )

2019 ( 179 )

2018 ( 251 )

2017 ( 253 )

Custom range...

Search Results: 1 - 10 of 195664 matches for " D. Gonzalez "
All listed articles are free for downloading (OA Articles)
Page 1 /195664
Display every page Item
Actualización sobre infecciones de transmisión sexual (ITS): transmisión de virus de ITS por sexo oral
Federico Díaz Gonzalez
Iatreia , 1998,
Abstract:
Gamma convergence of an energy functional related to the fractional Laplacian
Maria D. M. Gonzalez
Mathematics , 2008,
Abstract: We prove a Gamma-convergence result for an energy functional related to some fractional powers of the Laplacian operator, with two singular perturbations (one in the interior and one on the boundary).
A study of the electronic properties of liquid alkali metals: a self-consistent approach
Geertsma, W.;Gonzalez, D.;Gonzalez, L. H.;
Brazilian Journal of Physics , 2003, DOI: 10.1590/S0103-97332003000200045
Abstract: we study the electronic properties (density of states, conductivity and thermopower) of some nearly-freeelectron systems: the liquid alkali metals and two liquid alloys, li-na and na-k. the study has been performed within the self-consistent second order renormalized propagator perturbation expansion (rpe) for the self-energy. the input ionic pseudopotentials and static correlation functions are derived from the neutral pseudoatom method and the modified hypernetted chain theory of liquids, respectively. reasonable agreement with experiment is found for na, k, rb and na-k, whereas for li and cs and li-na the agreement is less satisfactory.
A study of the electronic properties of liquid alkali metals: a self-consistent approach
Geertsma W.,Gonzalez D.,Gonzalez L. H.
Brazilian Journal of Physics , 2003,
Abstract: We study the electronic properties (density of states, conductivity and thermopower) of some nearly-freeelectron systems: the liquid alkali metals and two liquid alloys, Li-Na and Na-K. The study has been performed within the self-consistent second order Renormalized Propagator Perturbation Expansion (RPE) for the self-energy. The input ionic pseudopotentials and static correlation functions are derived from the neutral pseudoatom method and the modified hypernetted chain theory of liquids, respectively. Reasonable agreement with experiment is found for Na, K, Rb and Na-K, whereas for Li and Cs and Li-Na the agreement is less satisfactory.
A study of the electronic properties of liquid alkali metals. A self--consistent approach
W. Geertsma,D. Gonzalez,L. H. Gonzalez
Physics , 2002, DOI: 10.1590/S0103-97332003000200045
Abstract: We study the electronic properties (density of states, conductivity and thermopower) of some nearly--free--electron systems: the liquid alkali metals and two liquid alloys, Li-Na and Na-K. The study has been performed within the self-consistent second order Renormalized Propagator Perturbation Expansion (RPE) for the self-energy. The input ionic pseudopotentials and static correlation functions are derived from the neutral pseudoatom method and the modified hypernetted chain theory of liquids, respectively. Reasonable agreement with experiment is found for Na, K, Rb and Na-K, whereas for Li and Cs and Li-Na the agreement is less satisfactory
Crossover Between Organized and Disorganized States In Some Non-Equilibrium Systems
D. L. Gonzalez,G. Tellez
Physics , 2008, DOI: 10.1088/1751-8113/42/19/195001
Abstract: We study numerically the crossover between organized and disorganized states of three non-equilibrium systems: the Poisson/coalesce random walk (PCRW), a one-dimensional spin system and a quasi one-dimensional lattice gas. In all cases, we describe this crossover in terms of the average spacing between particles/domain borders $< S(t) >$ and the spacing distribution functions $p^{(n)}(s)$. The nature of the crossover is not the same for all systems, however, we found that for all systems the nearest neighbor distribution $p^{(0)}(s)$ is well fitted by the Berry-Robnik model. The destruction of the level repulsion in the crossover between organized an disorganized states is present in all systems. Additionally, we found that the correlations between domains in the gas and spin systems are not strong and can be neglected in a first approximation but for the PCRW the correlations between particles must be taken into account. To find $p^{(n)}(s)$ with $n>1$, we propose two different analytical models based on the Berry-Robnik model. Our models give us a good approximation for the statistical behavior of these systems in their crossover and allow us to quantify the degree of order/disorder of the system.
Ambiguous ideal classes and ambiguous ideals
Cristian D. Gonzalez-Aviles
Mathematics , 2005,
Abstract: This paper is wrong and is therefore withdrawn.
Capitulation, ambiguous classes and the cohomology of the units
Cristian D. Gonzalez-Aviles
Mathematics , 2006,
Abstract: This paper presents results on both the kernel and cokernel of the S-capitulation map C_{F,S}\ra C_{K,S}^{G} for arbitrary finite Galois extensions K/F (with Galois group G) and arbitrary finite sets of primes S of F (assumed to contain the archimedean primes in the number field case)
Algebraic cycles on Severi-Brauer schemes of prime degree over a curve
Cristian D. Gonzalez-Aviles
Mathematics , 2007,
Abstract: Let $k$ be a perfect field and let $p$ be a prime number different from the characteristic of $k$. Let $C$ be a smooth, projective and geometrically integral $k$-curve and let $X$ be a Severi-Brauer $C$-scheme of relative dimension $p-1$ . In this paper we show that $CH^{d}(X)_{{\rm{tors}}}$ contains a subgroup isomorphic to $CH_{0}(X/C)$ for every $d$ in the range $2\leq d\leq p$. We deduce that, if $k$ is a number field, then $CH^{d}(X)$ is finitely generated for every $d$ in the indicated range.
Chevalley's ambiguous class number formula for an arbitrary torus
Cristian D. Gonzalez-Aviles
Mathematics , 2007,
Abstract: This version is a significant improvement of the original paper. It includes a new section where we discuss norm tori in some detail. The new abstract is the following: In this paper we obtain Chevalley's ambiguous class number formula for an arbitrary torus T over a global field. The classical formula of C.Chevalley may be recovered by setting T=G_{m} in our formula. As an illustration of the general result, we discuss norm tori in detail. A key ingredient of the proof of our main theorem is the work of X.Xarles on groups of components of Neron-Raynaud models of tori.
Page 1 /195664
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.