Now showing items 1-6 of 6
O problema de Dirichlet para a equação da hipersuperfícies mínimas em domínios limitados
(Universidade Federal de Santa Maria, 2014-07-22)
In this work we study the classical results of existence and non-existence of solutions for the Dirichlet problem for the minimal hypersurfaces equation in bounded domains of Rn due to Jenkins-Serrin .
Perseguição e Fuga em Modelos Presa-Predador
(Universidade Federal de Santa Maria, 2010-03-04)
The main purpose of this dissertation is to propose and analyze the effects of pursuit and evasion on predator-prey spatiotemporal dynamics. We use a Coupled Map Lattices formulation in which a system of difference equations ...
Superfícies duplamente conexas de curvatura média constante com bordo prescrito em planos paralelos
(Universidade Federal de Santa Maria, 2008-12-12)
In this work we presented some existence results about constant mean curvature surfaces in R³ with prescribed boundary in parallel planes, topologically an annulus, that are obtained by solving Dirichlet s problems for ...
MÚLTIPLAS ESCALAS EM INTERAÇÕES PRESA-PREDADOR
(Universidade Federal de Santa Maria, 2010-03-05)
The main purpose of this dissertation was to analyze the occurrence of two time scales in predator-prey systems. Initially, we proposed two discrete models without spatial structure. The first model considers fast vital ...
EQUAÇÕES DE NAVIER-STOKES: ASPECTOS FÍSICOS E SOLUÇÃO FRACA EM ESPAÇOS DE SOBOLEV
(Universidade Federal de Santa Maria, 2008-12-10)
In this work, based on the Law of conservation of mass and the Newton s second Law, we deducted the equations of Navier-Stokes for the uncompressing fluids. Then we have developed in a detailed way the varying form of ...
Ações de categorias, sistemas e equivalência entre as categorias de sistemas e semigrupos inversos
(Universidade Federal de Santa Maria, 2011-04-08)
Mark V. Lawson, in the book "Inverse Semigroups: The Theory of partial symmetries", provides a very relevant study of the characteristics of inverse semigroups, including Wagner-Preston Theorem of Representation, ...