Results 51 to 60 of about 23,916 (184)

Generalizations of Semi-Fredholm Operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1995
Summary: On nonseparable Hilbert spaces there are multiple sets of operators that are analogous to the semi-Fredholm operators on a separable space. We develop the properties of these sets and relate those properties to some recent research. We conclude with a theorem that indicates precisely how far one can go from a given generalized semi-Fredholm ...
openaire   +2 more sources

A thermodynamic formalism approach to the Selberg zeta function for Hecke triangle surfaces of infinite area

open access: yes, 2014
We provide an explicit construction of a cross section for the geodesic flow on infinite-area Hecke triangle surfaces which allows us to conduct a transfer operator approach to the Selberg zeta function.
Pohl, Anke D.
core   +1 more source

Exponential Dichotomies and Fredholm Operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
It is shown that if the operator ( L x ) ( t ) = x ˙ ( t ) − A ( t ) x (
openaire   +1 more source

Index-like theorem for massless fermions in spherically symmetric monopole backgrounds

open access: yesJournal of High Energy Physics, 2022
In this paper we study massless fermions coupled to spherically symmetric SU(N) monopoles without Yukawa couplings between the Higgs and fermion fields.
T. Daniel Brennan
doaj   +1 more source

Factorization of Fredholm operators

open access: yesMatematychni Studii, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Approximation by Semi-Fredholm Operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We present a simple approach for calculating some known distances from a bounded operator defined on a separable Hilbert space to certain sets related to semi-Fredholm operators.
openaire   +2 more sources

Solvability of Some Integral Equations in Banach Space and Their Applications to the Theory of Viscoelasticity

open access: yesAbstract and Applied Analysis, 2012
An integral equation of Volterra type with additional compact operator in Banach space is considered. A special case is an integral equation of contact problem that arises in theory of viscoelasticity of mixed Fredholm and Volterra type with spectral ...
Onur Alp İlhan
doaj   +1 more source

Eigenvalue problem for differential Cauchy-Riemann operator with nonlocal boundary conditions

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
We consider the reduced spectral problem for the Cauchy-Riemann operator with nonlocal boundary conditions to Fredholm linear integral equation of the second kind with a continuous kernel. The corresponding Fredholm determinant is defined for all spectral
Nurlan N Imanbaev
doaj   +1 more source

Solvability of some integral equations in Hilbert spaces

open access: yesElectronic Journal of Differential Equations, 2004
We consider an integral equation of Fredholm and Volterra type with spectral parameter depending on time. Conditions of solvability are established when the initial value of the parameter coincides with an eigenvalue of Fredholm operator.
Onur Alp Ilhan
doaj  

Factorization of abstract operators into two second degree operators and its applications to integro-differential equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
Boundary value problem B1x = f with an abstract linear operator B1, corresponding to an Fredholm integro-differential equation with ordinary or partial differential operator is researched.
I.N. Parasidis, E. Providas
doaj   +1 more source

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