Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Pera Maria Patrizia"'
Publikováno v:
Advanced Nonlinear Studies, Vol 19, Iss 1, Pp 149-163 (2019)
We study global continuation properties of the set of T-periodic solutions of parameterized second order delay differential equations with constant time lag on smooth manifolds. We apply our results to get multiplicity of T-periodic solutions. Our to
Externí odkaz:
https://doaj.org/article/e851a686c5fc4550a53ec7e6fc7a8580
This paper aims to provide a careful and self-contained introduction to the theory of topological degree in Euclidean spaces. It is intended for people mostly interested in analysis and, in general, a heavy background in algebraic or differential top
Externí odkaz:
http://arxiv.org/abs/2304.06463
We study, by means of a topological approach, the forced oscillations of second order functional retarded differential equations subject to periodic perturbations. We consider a delay-type functional dependence involving a gamma probability distribut
Externí odkaz:
http://arxiv.org/abs/2205.12758
We study the persistence of eigenvalues and eigenvectors of perturbed eigenvalue problems in Hilbert spaces. We assume that the unperturbed problem has a nontrivial kernel of odd dimension and we prove a Rabinowitz-type global continuation result. Th
Externí odkaz:
http://arxiv.org/abs/2101.02910
We extend to the infinite dimensional context the link between two completely different topics recently highlighted by the authors: the classical eigenvalue problem for real square matrices and the Brouwer degree for maps between oriented finite dime
Externí odkaz:
http://arxiv.org/abs/2006.15539
We consider the nonlinear eigenvalue problem $Lx + \varepsilon N(x) = \lambda Cx$, $\|x\|=1$, where $\varepsilon,\lambda$ are real parameters, $L, C\colon G \to H$ are bounded linear operators between separable real Hilbert spaces, and $N\colon S \to
Externí odkaz:
http://arxiv.org/abs/1912.07021
Thanks to a connection between two completely different topics, the classical eigenvalue problem in a finite dimensional real vector space and the Brouwer degree for maps between oriented differentiable real manifolds, we were able to solve, at least
Externí odkaz:
http://arxiv.org/abs/1912.03182
Publikováno v:
Fixed Point Theory and Applications, Vol 2004, Iss 4, p 478686 (2004)
It is well known that some of the properties enjoyed by the fixed point index can be chosen as axioms, the choice depending on the class of maps and spaces considered. In the context of finite-dimensional real differentiable manifolds, we will provid
Externí odkaz:
https://doaj.org/article/1022b29e86a24d5587a7cc48d1c19945
Akademický článek
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Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations. 2023, p1-23. 23p.