Browsing Artículos (Matemática Aplicada I) by Title
Now showing items 2140 of 314

A note on uniformly dominated sets of summing operators [Article]
(2002)Let Y be a Banach space that has no finite cotype and p a real number satisfying 1≤p<∞. We prove that a set ℳ⊂Πp(X,Y) is uniformly dominated if and only if there exists a constant C>0 such that, for every finite set ...

A parallel algorithm for skeletonizing images by using spiking neural P systems [Article]
(Elsevier, 201309)Skeletonization is a common type of transformation within image analysis. In general, the image B is a skeleton of the black and white image A, if the image B is made of fewer black pixels than the image A, it does preserve ...

A particular case of extended isotopisms: Santilli's isotopisms [Article]
(Hadronic Press, 2006)Due to a mathematical necessity, it has been proved that it is convenient to give a new interpretation of the multiplicity of Santilli's isounity Ib = Ib(x, v, t, µ, ρ, ...) of any Santilli's isotopism, as a family of ...

A second order pvm flux limiter method. Application to magnetohydrodynamics and shallow stratified flows [Article]
(Academic Press, 2014)In this work we propose a second order flux limiter finite volume method, named PVM2UFL, that only uses information of the two external waves of the hyperbolic system. This method could be seen as a natural extension of ...

A tool for integer homology computation: lambdaAT model [Article]
(2011)In this paper, we formalize the notion of lambdaATmodel (where λ is a nonnull integer) for a given chain complex, which allows the computation of homological information in the integer domain avoiding using the Smith ...

A twolayer shallow flow model with two axes of integration, wellbalanced discretization and application to submarine avalanches [Article]
(Elsevier, 20200401)We propose a twolayer model with two different axes of integration and a wellbalanced finite volume method. The purpose is to study submarine avalanches and generated tsunamis by a depthaveraged model with different ...

A twophase shallow debris flow model with energy balance [Article]
(2015)This paper proposes a thin layer depthaveraged twophase model provided by a dissipative energy balance to describe avalanches of solidfluid mixtures. This model is derived from a 3D twophase model based on the equations ...

A twophase solidfluid model for dense granular flows including dilatancy effects: comparison with submarine granular collapse experiments [Presentation]
(2017)We simulate here the collapse of granular columns immersed in a viscous fluid based on a simplified version of the model developed by [2]. The simulation quite well reproduces the dynamics and deposit of the granular ...

A twophase twolayer model for fluidized granular flows with dilatancy effects [Article]
(Cambridge University Press, 2016)We propose a twophase twothinlayer model for fluidized debris flows that takes into account dilatancy effects, based on the closure relation proposed by Roux & Radjai (Physics of Dry Granular Media, 1998, Springer, pp. ...

A vanishing theorem for a class of logarithmic Dmodules [Article]
(Cornell University, 2007)Let OX (resp. DX) be the sheaf of holomorphic functions (resp. the sheaf of linear differential operators with holomorphic coefficients) on X = Cn. Let D X be a locally weakly quasihomogeneous free divisor defined by ...

A wellbalanced finite volumeaugmented lagrangian method for an integrated HerschelBulkley model [Article]
(Plenum Press, 2012)We are interested in the derivation of an integrated HerschelBulkley model for shallow flows, as well as in the design of a numerical algorithm to solve the resulting equations. The goal is to simulate the evolution of ...

Algebraic computation of genetic patterns related to threedimensional evolution algebras [Article]
(Elsevier, 20180215)The mitosis process of an eukaryotic cell can be represented by the structure constants of an evolution algebra. Any isotopism of the latter corresponds to a mutation of genotypes of the former. This paper uses Computational ...

Algunas aplicaciones de las curvas de Bertrand [Article]
(2008) 
An algebraic approach to Integer Portfolio problems [Article]
(20110501)Integer variables allow the treatment of some portfolio optimization problems in a more realistic way and introduce the possibility of adding some natural features to the model. We propose an algebraic approach to ...

An aperiodic tiles machine [Article]
(2002)The results we introduce in this work lead to get an algorithm which produces aperiodic sets of tiles using Voronoi diagrams. This algorithm runs in optimal worstcase time O(nlogn). Since a wide range of new examples can ...

An application for gait recognition using persistent homology [Article]
(Universidad de Sevilla, 2013)This Demo presents an application for gait recognition using persistent homology. Using a background subtraction approach, a silhouette sequence is obtained from a camera in a controlled environment. A border simplicial ...

An Application of TotalColored Graphs to Describe Mutations in NonMendelian Genetics [Article]
(MDPI, 2019)Any gene mutation during the mitotic cell cycle of a eukaryotic cell can be algebraically represented by an isotopism of the evolution algebra describing the genetic pattern of the inheritance process. We identify any ...

An approach to the isotheory by means of extended pseudoisotopisms [Article]
(American Institute of Physics, 2016)Based on the traditional concept of isotopism, extended isotopisms were introduced by the authors in 2006 in order to provide a fundamental basis to the isotheory of Santilli. Since that first attempt, distinct studies on ...

An approximation property with respect to an operator ideal [Article]
(Polskiej Akademii Nauk, Instytut Matematyczny, 2013)Given an operator ideal A, we say that a Banach space X has the approximation property with respect to A if T belongs to {S ◦T : S ∈F(X)} τc for every Banach space Y and every T ∈A(Y,X), τc being the topology of uniform ...

An Efficient TwoLayer Nonhydrostatic Approach for Dispersive Water Waves [Article]
(Springer, 2019)In this paper, we propose a twolayer depthintegrated nonhydrostatic system with improved dispersion relations. This improvement is obtained through three free parameters: two of them related to the representation of ...