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Optimisation of a parametric CAD geometry by means of a genetic algorithm
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2010-08-01)
This thesis has the aim of optimising a three-dimensional geometry whose dimensions have been previously defined by parameters. Such a definition allows the geometry to change its shape by altering the value of a parameter ...
El reto de Hilbert en la teoría de las magnitudes poligonales: un capítulo en la axiomatización sintética de la geometría euclidianaHilbert’s Challenge in the Theory of Polygonal Magnitudes: A Chapter in the Synthetic Axiomatization of Euclidean Geometry
(Centro de Investigaciones Filosóficas, 2017-11)
El artículo desarrolla una interpretación de las contribuciones de David Hilbert, en su influyente monografía Fundamentos de la geometría (1899), a la teoría de las magnitudes poligonales. Se argumenta que la construcción ...
Crossing the phantom barrier with purely kinetic multiple k-essence
(Elsevier Science, 2006-07)
We consider multiple k-essence sources and obtain the conditions their kinetic functions must satisfy so that purely kinetic k-essences lead to models with phantom barrier crossing. After that, we show that polynomial ...
Decomposition of the Laplace-Beltrami operator on riemannian manifolds
(Universidad Nacional de ColombiaBogotá - Ciencias - Maestría en Ciencias - MatemáticasDepartamento de MatemáticasFacultad de CienciasBogotá, ColombiaUniversidad Nacional de Colombia - Sede Bogotá, 2021)
The goal of this work is to study the geometric conditions required on a pseudo-Riemannian manifold M to guarantee the existence of solutions of a second order partial differential equation posed on M. We closely follow ...
Steady and dynamic shear rheological properties of acai pulp (Euterpe oleraceae Mart.)
(Elsevier Sci LtdOxfordInglaterra, 2009)
Electrovacuum geometries in five dimensions
(American Physical Society, 2018-12)
The Chong-Cvetič-Lü-Pope 5D rotating charged black hole proves to belong to a set of solutions to Einstein-Maxwell-Chern-Simons (EMCS) equations that share the electromagnetic potential and the Chern-Simons coupling constant ...