Now showing items 291-300 of 300
Geometric invariants of cuspidal edges
(Canadian Journal of Mathematics, 2016-04-01) [Artigo]
We give a normal form of the cuspidal edge that uses only diffeomorphisms on the source and isometries on the target. Using this normal form, we study differential geometric invariants of cuspidal edges that determine them ...
Bifurcation of limit cycles from a non-smooth perturbation of a two-dimensional isochronous cylinder
(Bulletin des Sciences Mathematiques, 2016-06-01) [Artigo]
Detect the birth of limit cycles in non-smooth vector fields is a very important matter into the recent theory of dynamical systems and applied sciences. The goal of this paper is to study the bifurcation of limit cycles ...
Coding of substitution dynamical systems as shifts of finite type
(Ergodic Theory and Dynamical Systems, 2014-01-01) [Artigo]
We develop a theory that allows us to code dynamical systems induced by primitive substitutions continuously as shifts of finite type in many different ways. The well-known prefix-suffix coding turns out to correspond to ...
Núcleos de Ensino da Unesp: artigos 2012: volume 2: metodologias de ensino e a apropriação de conhecimento pelos alunos
(Coleção PROGRAD (UNESP), 2014) [Livro]
Núcleos de Ensino da Unesp: artigos 2009
(Coleção PROGRAD (UNESP), 2011) [Livro]
Limit weierstrass points on nodal reducible curves
(Transactions of the American Mathematical Society, 2007-01-01) [Artigo]
In the 1980s D. Eisenbud and J. Harris posed the following question: What are the limits of Weierstrass points in families of curves degenerating to stable curves not of compact type? In the present article, we give a ...
The boson-fermion correspondence from linear ODEs
(Journal Of Algebra, 2014-10-01) [Artigo]
There is a bridge between generic linear Ordinary Differential Equations (ODEs), Schubert Calculus and the bosonic-fermionic representations of the Heisenberg algebra. For a finite-order generic linear ODE, the role of the ...
Families of special Weierstrass points
(Comptes Rendus Mathematique, 2009-11-01) [Artigo]
The purpose of this Note is to show that loci of (special) Weierstrass points on the fibers of a family pi: X -> S of smooth curves of genus g >= 2 can be studied by simply pulling back the Schubert calculus naturally ...
Olimpíada de matemática de Rio Preto (OMRP)
(Congresso de extensão universitária da UNESP, 2015-09-15) [Trabalho apresentado em evento]
Olympiad of mathematics can be defined as equivalent to sporting events such as swimming and football, or how literature and music festivals. As in any dispute, the Olympiad also requires specific training. In this work ...
Constructions of algebraic lattices
(Computational & Applied Mathematics, 2010-01-01) [Artigo]
In this work we present constructions of algebraic lattices in Euclidean space with optimal center density in dimensions 2, 3, 4, 6, 8 and 12, which are rotated versions of the lattices Λn, for n = 2,3,4,6,8 and K12. These ...