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Itens para a visualização no momento 41-50 of 77
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 ...
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 ...
Um modelo de redes de mapas acoplados para um sistema praga-predador-inseticida
(Universidade Federal de Santa Maria, 2016-08-24)
This research is inserted in the Biomathematics Research Group of the Programa de
Pós-Graduação em Matemática of the Universidade Federal de Santa Maria-RS. It
consists in the study of a discrete model for a prey-preda ...
Dualidade de Tannaka para biálgebras
(Universidade Federal de Santa Maria, 2015-08-14)
Não foi possível inserir o abstract.
Teoremas de Maschke
(Universidade Federal de Santa Maria, 2013-05-09)
In representation theory, having a representation of a group G is equivalent to having
a kG-module. Since |G-modules which are sums of irreducible kG-modules form a very
important class in the theory of modules, to know ...
Sobre uma classe de problemas elípticos envolvendo o operador p-Laplaciano, com peso e potencial indefinidos e diferentes condições de fronteira
(Universidade Federal de Santa Maria, 2019-03-12)
This work is dedicated to study two distinct classes of eigenvalue problems, involvinthe p-laplacian operator and indefinite weight and potential functions. We give somge
necessary and sufficient conditions such that there ...
Existência e multiplicidade de soluções fracas para equações diferenciais parciais elípticas com não linearidade de fronteira
(Universidade Federal de Santa Maria, 2017-03-16)
Não foi possível inserir o abstract.
Problemas de autovalores para o p-Laplaciano com distintas condições de fronteira
(Universidade Federal de Santa Maria, 2019-07-25)
The goal of this work is to obtain, through the Ljusternik-Schnirelman principle,
a sequence of eigenvalues for p-Laplacian with Dirichlet, Neumann and Robin-Steklov
boundary conditions, the last one which is a combination ...
Multiplicidade de soluções para um problema envolvendo o operador p-laplaciano fracionário
(Universidade Federal de Santa Maria, 2019-02-22)
The aim of the work is to give, through variational methods, sufficient conditions on a
positive parameter to ensure the existence and multiplicity of solutions for the class of
elliptic problems. Such class of problems ...
Pontos helicoidais e vértices de Darboux de curvas no espaço euclidiano
(Universidade Federal de Santa Maria, 2010-03-11)
The main aim of this work is a study about twistings points and Darboux vertices of n-space curves. We define the concept of twisting of a n-space curve as flattening
point of its tangent indicatrix and show that is ...