Browsing Matemática by Title
Now showing items 13-32 of 54
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Dataducto para construir Emuladores Estadísticos con datos de NARCCAP
(2019-01-25)El proyecto de investigación B7166 de la Universidad de Costa Rica tiene como objetivo principal presentar un marco estadístico para realizar una emulación de variables obtenidas por medio del Modelo Climático Regional ... -
Domain Decomposition Methods for Problems in H(curl)
(2015-05)Two domain decomposition methods for solving vector field problems posed in H(curl) and discretized with Nedelec finite elements are considered. These finite elements are conforming in H(curl). A two-level overlapping ... -
Drinking as an epidemic - a simple mathematical model with recovery and relapse
(2007)This chapter discusses a simple mathematical model of drinking lapse. Problem drinking is modeled as an acquired state - the result of frequent or intense interactions among individuals in three drinking states within a ... -
Estimation of the yield curve for Costa Rica using metaheuristic optimization
(2017-06-30)The term structure of interest rates or yield curve is a function relating the interest rate with its own term. Nonlinear regression models of Nelson-Siegel and Svensson were used to estimate the yield curve using a sample ... -
Faltings heights of CM elliptic curves and special Gamma values
(2017-12)In this paper, we evaluate the Faltings height of an elliptic curve with complex multiplication by an order in an imaginary quadratic field in terms of Euler’s Gamma function at rational arguments. -
Geometrical correlation indices using homological constructions on manifolds
(2018)Abstract The course of dimensionality is a common problem in statistics and data analysis. Variable sensitivity analysis methods are a well studied and established set of tools designed to overcome these sorts of problems. ... -
La geometría en su contexto histórico
(Las Matemáticas y su Enseñanza 6(17):21–34, 1995 octubre, 1995-10-15)La geometría en los sistemas de enseñanza media ha sido retomado por diversas propuestas para remozar los programas de matemáticas; y en el caso de Costa Rica, con la puesta en práctica de un programa ambicioso que destaca ... -
Geometría: II y III ciclo Educación General Básica
(Universidad de Costa Rica, Sede de Occidente. San Ramón, Alajuela, C.R., 1993-09)Esta es una guía para la enseñanza de temas de geometría elemental, considerados principalmente en los programas del II y III ciclo de Educación General Básica. Se incluyen fichas de laboratorio dirigidas a los educandos, ... -
Groups with f-generics in NTP2 and PRC fields
(2018)We study groups with f-generic types definable in bounded PRC fields. Along the way, we generalize part of the basic theory of definably amenable NIP groups to NTP2theories and prove variations on Hrushovski’s stabilizer theorem. -
Los grupos clásicos y su clasificación
(Coloquios de Matemática., 2011-08-10)Esta es la memoria de un coloquio en la Escuela de Matemática, el 10 de agosto del 2011, en la ocasión de la visita a la UCR del Profesor Luis Joaquín Boya, de Zaragoza. Es un bosquejo de la clasificación de los grupos ... -
Heat content estimates over sets of finite perimeter
(2016-09)This paper studies by means of standard analytic tools the small time behavior of the heat content over a bounded Lebesgue measurable set of finite perimeter by working with the set covariance function and by imposing ... -
Imaginaries, invariant types and pseudo p-adically closed fields
(2019-04-29)In this paper, we give a general criterion for elimination of imaginaries using an abstract independence relation. We also study germs of definable functions at certain well-behaved invariant types. Finally we apply these ... -
Improved Automatic Centerline Tracing for Dendritic and Axonal Structures
(2015-04)Centerline tracing in dendritic structures acquired from confocal images of neurons is an essential tool for the construction of geometrical representations of a neuronal network from its coarse scale up to its fine scale ... -
Isometry groups of borel randomizations
(2018-08)We study global dynamical properties of the isometry group of the Borel randomization of a separable complete structure. In particular, we show that if properties such as the Rohklin property, topometric generics, extreme ... -
Laboratorio de matemática: Fascículo #1
(Universidad de Costa Rica. Sede de Occidente, 1992, 1992)Este fascículo consiste en una serie de guías para utilizar los modelos didácticos correspondientes a diversos conceptos matemáticos incluidos en los programas de los cursos de la enseñanza primaria y secundaria. Incluye ... -
Location of the zeros of certain parametric families of functions of generalized Fresnel integral type
(2019)In this paper, two parametric families of functions, the so-called Complementary Fresnel Integral and the Lommel type, which are of generalized Fresnel integral type, are considered. We review the problems of existence ... -
Obtención de conjuntos aproximados mediante algoritmos genéticos
(Tesis para optar al grado de Magister Scientiae en Computación. ITCR, Cartago, 1999., 1999)En términos generales, la teoría de conjuntos aproximados, propuesta por Pawlak, consiste en explorar las particiones asociadas a las relaciones de equivalencia generadas por cada subconjunto de los atributos observados, ...