Results 231 to 240 of about 351,014 (282)

Caratheodory periodic perturbations of degenerate systems

open access: yesElectronic Journal of Differential Equations
Alessandro Calamai, Marco Spadini
doaj  

On Degree Spectra of Topological Spaces

Lobachevskii Journal of Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Topological Degree Computation

2001
In this chapter we address the problem of computing topological degree of Lipschitz functions. From the knowledge of the topological degree one may ascertain whether there exists a zero of a function inside the domain, a knowledge that is practically and theoretically worthwile.
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The Topological Degree

2016
In this chapter we develop the theory of topological degree. We first deal with the case of a finite dimensional space, by constructing the Brouwer degree. We then extend such a construction to the infinite dimensional setting, introducing the Leray–Schauder degree.
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Topological Degree in Infinite Dimensions

1985
In this basic chapter we shall study some basic problems concerning equations of the form f (x) = y, where f is a continuous map from a subset Ω ⊂ ℝ n into ℝ n and y is a given point in ℝ n . First of all we want to know whether such an equation has at least one solution x ∈Ω.
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Topological degree for supersymmetric chiral models

Physical Review D, 1985
For the case of an N-field supersymmetric chiral model we discuss the relationship between the Witten index, the topological degree, the winding number, and the degree of polynomials. Using results of classical analysis we can then place strong constraints on the Witten index of supersymmetric chiral models.
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