Search results for "Matemàtiques"
showing 5 items of 55 documents
Expos: Imaginary. Una mirada matemàtica
2012
La Universitat de València presenta el projecte expositiu 'Imaginary', una exposició interactiva en la qual es posen de relleu les diverses interelacions entre les matemàtiques i l'art.
Álgebras de funciones analíticas acotadas. Interpolación
2008
Este trabajo resume, de forma parcial, la investigaci¶on realizada durantemi periodo predoctoral. Esta investigaci¶on pertenece, de forma general,a la teor¶³a de ¶algebras de Banach conmutativas y ¶algebras uniformes y,en particular, se desarrolla principalmente en el ¶ambito de las ¶algebras defunciones anal¶³ticas acotadas en dominios de espacios de Banach ¯nito ein¯nito dimensionales.Las l¶³neas centrales de este trabajo son las siguientes:² Sucesiones de Interpolaci¶on para ¶Algebras Uniformes² Operadores de Composici¶on² Propiedades Topol¶ogicas de ¶Algebras de Funciones Anal¶³ticasLa investigaci¶on realizada sobre sucesiones de interpolaci¶on para ¶algebrasuniformes se puede dividir e…
On partially saturated formations of finite groups.
2007
This thesis deals with finite groups. More precisely, it studies formations,which are classes of groups closed under taking homomorphic images andsubdirect products. The concept of X-local formation, where X is a classof simple groups, generalises the concepts of local formation and Baer-localformation. It was introduced by F¨orster with the aim of generalising thewell-known theorems of Gasch¨utz-Lubeseder-Schmid and Baer. The first onestates that a formation is saturated if and only if it is local. The second onecharacterises Baer-local formations as the solubly saturated ones. F¨orsterintroduced a Frattini-like subgroup associated with the class X and whichallowed him to introduce the con…
Study of homogeneous DÀtri spaces, of the Jacobi operator on g.o. spaces and the locally homogeneous connections on 2-dimensional manifolds with the …
2007
Nowadays, the concept of homogeneity is one of the fundamental notions in geometry although its meaning must be always specified for the concrete situations. In this thesis, we consider the homogeneity of Riemannian manifolds and the homogeneity of manifolds equipped with affine connections. The first kind of homogeneity means that, for every smooth Riemannian manifold (M, g), its group of isometries I(M) is acting transitively on M. Part I of this thesis fits into this philosophy. Afterwards in Part II, we treat the homogeneity concept of affine connections. This homogeneity means that, for every two points of a manifold, there is an affine diffeomorphism which sends one point into another…
The uncertainty of the energy demand in existing mediterranean urban blocks
2013
The objective of the paper is to describe a stochastic model that has been developed to obtain load profiles for household electricity. For the study, several profiles have been generated in order to simulate the electrical demand of a residential building block or neighbourhood and evaluate the uncertainty of its energy use. The paper is divided in three different parts: development of the model, validation and determination of the uncertainty demand. In the first parts the basis of the model and how it works is explained. The second one represents the validation of the model, the input data and its results. The last step is focused on a statistical analysis of the electricity demand of a …