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  • Facial expression recognition and modeling for virtual intelligent tutoring systems
    Ríos, HV; Solis, AL; Aguirre, E; Guerrero, L; Pena, J; Santamaria, A (2000)
    This paper describes ongoing work for developing a new interface for intelligent tutoring systems based on recognition and synthesis of facial expressions. This interface senses the emotional state of the user, or his/her ...
  • Fitting Ranked Linguistic Data with Two-Parameter Functions
    Li, WT; Miramontes, P; Cocho, G (2010)
    It is well known that many ranked linguistic data can fit well with one-parameter models such as Zipf's law for ranked word frequencies. However, in cases where discrepancies from the one-parameter model occur (these will ...
  • The flow of classical mechanical cubic potential systems
    Falconi, M; Lacomba, EA; Vidal, C (2004)
    This paper describes the global flow of homogeneous polynomial potentials of degree 3 for negative and positive energy. For the negative energy case a blow up of McGehee type is enough to get the complete picture of the ...
  • Fractal scattering of microwaves from soils
    Oleschko, K; Korvin, G; Balankin, AS; Khachaturov, RV; Flores, L; Figueroa, B; Urrutia, J; Brambila, F (2002)
    Using a combination of laboratory experiments and computer simulation we show that microwaves reflected from and transmitted through soil have a fractal dimension correlated to that of the soil's hierarchic permittivity ...
  • Free G-spaces and maximal equivariant compactifications
    Antonyan, N; Antonyan, SA (2005)
    For a compact Lie group G we prove that every free (resp., semifree) G-space admits a based-free (resp., semifree) G-compactification. Examples of finite- and infinite-dimensional G-spaces are presented that do not admit ...
  • G-ANR's with homotopy trivial fixed point sets
    Antonyan, SA (2007)
    Let G be a compact group and X a G-ANR. Then X is a G-AR iff the H-fixed point set X-H is homotopy trivial for each closed subgroup H subset of G.
  • Geometría analítica
    Ramírez-Galarza, A I (Las Prensas de Ciencias, 2004)
    Este texto constituye una introducción al estudio de este tipo de geometría e incluye ilustraciones, ejemplos, ejercicios y preguntas que permiten al lector poner en práctica los conocimientos adquiridos.
  • Geometría riemanniana
    Sánchez-Morgado, H; Palmas-Velasco, O (Las Prensas de Ciencias, 2007)
    Se presentan algunos conceptos y resultados básicos de la geometría remanniana, cubriendo los aspectos fundamentales de la teoría de las variedades y de haces, así como los tensores y las formas.
  • Groups with isomorphic Burnside rings
    Raggi-Cardenas, A; Valero-Elizondo, L (2005)
    We prove that for some families of finite groups, the isomorphism class of the group is completely determined by its Burnside ring. Namely, we prove the following: if two finite simple groups have isomorphic Burnside rings, ...
  • HOMOLOGICAL SYSTEMS IN MODULE CATEGORIES OVER PRE-ORDERED SETS
    Mendoza, O; Saenz, C; Xi, CC (2009)
    We introduce the so-called homological systems in a module category over a pre-ordered set, which generalize the notion of a stratifying system over a linearly ordered set, and study both the corresponding modules filtrated ...
  • The hyperspaces C(p,X) for atriodic continua
    Pellicer-Covarrubias, P (2005)
    Let C(X) denote the hyperspace of subcontinua of a continuum X. For A is an element of C(X), define the hyperspace C(A, X) = {B is an element of C(X) : A subset of B}. We prove that nondegenerate Whitney levels of C(p, X) ...
  • II INTERNATIONAL-COLLOQUIUM ON THE HISTORY AND PHILOSOPHY OF MATHEMATICS - DECEMBER 10-13, 1990
    GarcíaDIEGO, AR (1992)
  • Independent sets which meet all longest paths
    RinconMejia, HA; GaleanaSánchez, H (1996)
    We prove some sufficient conditions for a directed graph to have the property of a conjecture of J.M. Laborde, Ch. Payan and N.H. Huang (1982): ''Every directed graph contains an independent set which meets every longest ...
  • Infinity manifolds of cubic polynomial Hamiltonian vector fields with 2 degrees of freedom
    Falconi, M; Lacomba, EA; Llibre, J (2000)
    Let X be the Hamiltonian vector field with two degrees of freedom associated to the cubic polynomial Hamiltonian H(x,y,z,w). Using the Poincare compactification we show that all the energy levels of X in R-4 reach the ...
  • Influence of vertical and mechanical transmission on the dynamics of dengue disease
    Esteva, L; Vargas, C (2000)
    We formulate a non-linear system of differential equations that models the dynamics of transmission of dengue fever. We consider vertical and mechanical transmission in the vector population, and study the effects that ...
  • Instrumentos y matemáticas
    Falconi-Magaña, M (Las Prensas de Ciencias, 2005)
    La utilización de máquinas y juegos matemáticos como alternativa para mejorar la enseñanza de las matemáticas es la propuesta de este texto.
  • Introducción a la geometría avanzada
    Ramírez-Galarza, A I; Seade-Kuri, J (Las Prensas de Ciencias, 2002)
    Este libro presenta las ideas fundamentales de las diversas áreas que se abren ante quien ha concluido los dos primeros semestres de geometría analítica ya que abarca: geometría no euclidiana, geometría afín, geometría ...
  • Introducción a la programación lineal
    Hernández-Ayuso, M C (Las Prensas de Ciencias, 2007)
    En este libro el estudiante encontrará un apoyo invaluable para cursos introductorios de investigación de operaciones o programación lineal de las carreras de actuaría, matemáticas, ingenierías y administración. Tiene ...
  • Introducción a la teoría intuitiva de conjuntos
    Gómez-Laveaga, C (Las Prensas de Ciencias, 2007)
    El libro consta de cuatro capítulos. El primero es una introducción rápida a la teoría de conjuntos. El capítulo 2 presenta el Axioma de Elección y algunas de sus equivalencias. El capítulo 3 está dedicado a los números ...
  • INTRODUCTION TO ALGEBRAIC K-THEORY
    LLUISPUEBLA, E (1992)
    These notes contain a series of ten lectures delivered at the ''Universidad Nacional Autonoma de Mexico'' on its ''Primer Seminario de K-Teoria Algebraica''. They provide an introduction to the subject as well as to the ...

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