Revista de Matemáticas 22(1)
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Algunas soluciones exactas para la ecuación unidimensional de fokker-planck usando simetrías de lie
(2015-01-01)La ecuación de Fokker Planck aparece en el estudio de fenómenos de difusión, procesos estocásticos y mecánica clásica y cuantica. Un caso particular de esta ecuación, ut − uxx − xux − u = 0, es analizada empleando el método ... -
Times of analgesic efficacy of two drugs in the treatment of patients with renal-ureteral colic compared by survival models
(2015-01-01)Renourethral colic is a very painful clinical situation that requires a quick diagnosis and treatment. A study was done with patients who were administered two types of analgesics, and whose pain was measured through a ... -
Cognitive rhythms and evolutionary algorithms in university timetables scheduling
(2015-03-18)The main purpose of this research is to design a methodology based on evolutionary algorithms to university timetable scheduling. This methodology will consider the students’ cognitive rhythms, which establish that teaching ... -
TABU SEARCH WITH ASPIRATION CRITERION FOR THE TIMETABLING PROBLEM
(2015-01-01)The aspiration criterion is an imperative element in the Tabu Search, with aspiration-by-default and the aspiration-by-objective the mainly used criteria in the literature. In this paper a new aspiration criterion is ... -
OPTIMAL PRODUCTION–SALES STRATEGIES FOR A COMPANY AT CHANGING MARKET PRICE
(2015-01-01)In this paper we consider a monopoly producing a consumer good of high demand. Its market price depends on the volume of the produced goods described by the Cobb-Douglas production function. A production-sales activity of ... -
Selective methodology of population dynamics for optimizing a multiobjective environment of job shop production
(2015-03-18)This paper develops a methodology based on population genetics to improve the performance of two or more variables in job shop production systems. The methodology applies a genetic algorithm with special features in the ... -
An adaptive wavelet-galerkin method for parabolic partial differentia equations
(2015-01-01)In this paper an Adaptive Wavelet-Galerkin method for the solution of parabolic partial differential equations modeling physical problems with different spatial and temporal scales is developed. A semi-implicit time ... -
Special software for computing the special functions of wave catastrophes
(2015-01-01)The method of ordinary differential equations in the context of calculating the special functions of wave catastrophes is considered. Complementary numerical methods and algorithms are described. The paper shows approaches ... -
Fourier coefficientes computation in two variables, a distributional version
(2015-01-01)The present article, by considering the distributional summations of Euler-Maclaurin and a suitable choice of the distribution, results in repre- sentations for the Fourier coefficients in two variables are obtained. These ... -
Local convergence of exact and inexact newton’s methods for subanalytic variational inclusions
(2015-01-01)This paper deals with the study of an iterative method for solving a variational inclusion of the form 0 ∈ f (x)+F (x) where f is a locally Lipschitz subanalytic function and F is a set-valued map from Rn to the closed ... -
Infinitely oscillating wavelets and a efficient implementation algorithm based the FFT
(2015-01-01)In this work we present the design of an orthogonal wavelet, infinitely oscillating, located in time with decay 1/|t|n and limited-band. Its appli- cation leads to the signal decomposition in waves of instantaneous, well ...
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