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Itens para a visualização no momento 31-40 of 74
Vértices, curva focal e superfície focal de curvas no espaço
(Universidade Federal de Santa Maria, 2013-03-19)
The focal surface of a curve γ in the Euclidean 3-space is defined as the envelope of the normal
planes of γ. The focal surface of γ is singular along a curve Cγ, called the focal curve or generalized
evolute. This curve ...
Estudo do produto matricial por meio do método dos mínimos quadrados: uma abordagem destinada ao ensino médio
(Universidade Federal de Santa Maria, 2014-04-22)
It has always been a challenge for math teachers to motivate students nowadays, with
access to new technologies, this becomes and even greater challenge. One of the strategies
that can be utilized in trying to increase ...
Envolventes para ações parciais de grupos e de álgebras de Hopf
(Universidade Federal de Santa Maria, 2012-02-01)
Based on the articles Associativity of crossed produts by partial actions,
enveloping actions and partial representations" of M. Dokuchaev and R. Exel ([7] and Enveloping Actions for Partial Hopf Actions" of M.M.S. Alves ...
Dinâmica de um sistema presa-predador com predador infectado por uma doença
(Universidade Federal de Santa Maria, 2013-05-10)
The aim of this work is to study the temporal and spatiotemporal evolution of a threedimensional
system that describes a predator-prey dynamics, where the predator population
can develop an infectious disease.
Thus, the ...
Equações diferenciais lineares sem solução
(Universidade Federal de Santa Maria, 2014-02-27)
In this work we present the proof of a result due to Lars Hörmander which establishes a necessary condition for a linear operator with variable coefficients is globally resolvable.
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 ...