https://uvadoc.uva.es/handle/10324/1361 Dpto. Matemática Aplicada - Comunicaciones a congresos, conferencias, etc. Fri, 10 Apr 2026 08:41:26 GMT 2026-04-10T08:41:26Z https://uvadoc.uva.es/handle/10324/30729 Actas del CoMUE. Incluye conferencias y comunicaciones.Celebrado el 23 de marzo de 2018, en el Palacio de Congresos Conde Ansúrez de la Universidad de Valladolid. Mon, 01 Jan 2018 00:00:00 GMT https://uvadoc.uva.es/handle/10324/30729 2018-01-01T00:00:00Z https://uvadoc.uva.es/handle/10324/25805 This talk will be devoted to study oscillation properties of nonautonomous linear Hamiltonian systems applying some fundamental methods of topological dynamics and of ergodic theory. In particular, we will define and characterize the uniform weak disconjugacy concept and we will analyze the connections between disconjugacy, uniform weak disconjugacy, weak disconjugacy, and nonoscillation. A formula for the rotation number in terms of the multiplicity of the proper focal points of a conjoined basis will also be shown. Sun, 01 Jan 2017 00:00:00 GMT https://uvadoc.uva.es/handle/10324/25805 2017-01-01T00:00:00Z https://uvadoc.uva.es/handle/10324/25556 We present two different algorithms to compute the Weierstrass semigroup at a point P together with functions for each value in this semigroup from a plane model of the curve. The first one works in a quite general situation and it is founded on the Brill-Noether algorithm. The second method works in the case of P being the only point at infinity of the plane model, what is very usual in practice, and it is based on the Abhyankar-Moh theorem, the theory of approximate roots and an integral basis for the affine algebra of the curve. This last way is simpler and has an additional advantage: one can easily compute the Feng-Rao distances for the corresponding array of one-point algebraic geometry codes, this thing be done by means of the Apéry set of the Weierstrass semigroup. Everything can be applied to the problem of decoding such codes by using the majority scheme of Feng and Rao. Sat, 01 Jan 2000 00:00:00 GMT https://uvadoc.uva.es/handle/10324/25556 2000-01-01T00:00:00Z https://uvadoc.uva.es/handle/10324/21435 We introduce and analyze a numerical method based on the integration along characteristics curves with the use of the natural grid. It is employed to obtain the solution to a cell population balance model structured by the cell size and with assymetric division rate. Fri, 01 Jan 2016 00:00:00 GMT https://uvadoc.uva.es/handle/10324/21435 2016-01-01T00:00:00Z https://uvadoc.uva.es/handle/10324/21418 In this work we present a second-order numerical method, based on the integration along the characteristic curves, for the approximation of the solution to a population model describing the evolution of a size-structured cell population with asymmetric division. This method is used to approximate the stable size distribution of the model. Thu, 01 Jan 2015 00:00:00 GMT https://uvadoc.uva.es/handle/10324/21418 2015-01-01T00:00:00Z https://uvadoc.uva.es/handle/10324/21415 In this work we present a second-order numerical method, based on the integration along the characteristic curves, for the approximation of the solution to a population model describing the evolution of a size-structured cell population with equal fission. This method is used to approximate the stable size distribution of the model. Thu, 01 Jan 2015 00:00:00 GMT https://uvadoc.uva.es/handle/10324/21415 2015-01-01T00:00:00Z