Results 21 to 30 of about 19,956 (200)

Properties and for Bounded Linear Operators

open access: yesJournal of Mathematics, 2013
We shall consider properties which are related to Weyl type theorem for bounded linear operators , defined on a complex Banach space . These properties, that we call property , means that the set of all poles of the resolvent of of finite rank in the ...
M. H. M. Rashid
doaj   +1 more source

Topology and Homoclinic Trajectories of Discrete Dynamical Systems [PDF]

open access: yes, 2012
We show that nontrivial homoclinic trajectories of a family of discrete, nonautonomous, asymptotically hyperbolic systems parametrized by a circle bifurcate from a stationary solution if the asymptotic stable bundles Es(+{\infty}) and Es(-{\infty}) of ...
A. Abbondandolo   +24 more
core   +2 more sources

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

Tauberian operators in p-adic analysis

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
In archimedean analysis Tauberian operators and operators having property N were defined by Kalton and Wilansky (1976). We give several characterizations of p-adic Tauberian operators and operators having property N in terms of basic sequences.
Takemitsu Kiyosawa
doaj   +1 more source

General Riemann-Hilbert problem with discontinuous coefficients for Moisil-Theodoresco system with junior members

open access: yesLietuvos Matematikos Rinkinys, 1997
For Moisil–Theodoresco system with junior members a problem of new type, called Riemann­–Hilbert problem with discontinuous coefficients, is considered. Under certain conditions this prob­lem is proved to have Fredholm property for the mentioned system.
Rima Matiukaitė
doaj   +1 more source

A boundary value problem for a random-order fractional differential equation

open access: yesResults in Applied Mathematics, 2022
In this paper, we define a new Riemann–Liouville fractional integral with random order, from this Caputo and Riemann–Liouville fractional derivatives are straightforward obtained, where the fractional order of these operators is a simple random variable.
Omar U. Lopez-Cresencio   +3 more
doaj   +1 more source

Evans function and Fredholm determinants [PDF]

open access: yes, 2014
We explore the relationship between the Evans function, transmission coefficient and Fredholm determinant for systems of first order linear differential operators on the real line.
Karambal, Issa, Malham, Simon J. A
core   +3 more sources

A degree theory for compact perturbations of proper C1 Fredholm mappings of index 0

open access: yesAbstract and Applied Analysis, 2005
We construct a degree for mappings of the form F+K between Banach spaces, where F is C1 Fredholm of index 0 and K is compact. This degree generalizes both the Leray-Schauder degree when F=I and the degree for C1 Fredholm mappings of index 0 when K=0.
Patrick J. Rabier, Mary F. Salter
doaj   +1 more source

Elliptic operators on refined Sobolev scales on vector bundles

open access: yesOpen Mathematics, 2017
We introduce a refined Sobolev scale on a vector bundle over a closed infinitely smooth manifold. This scale consists of inner product Hörmander spaces parametrized with a real number and a function varying slowly at infinity in the sense of Karamata. We
Zinchenko Tetiana
doaj   +1 more source

TE-Polarized Electromagnetic Wave Diffraction by a Circular Slotted Cylinder

open access: yesMathematics, 2023
The problem of diffraction of a TE-polarized electromagnetic wave by a circular slotted cylinder is investigated. The boundary value problem in question for the Helmholtz equation is reduced to an infinite system of linear algebraic equations of the ...
Garnik V. Abgaryan, Yury V. Shestopalov
doaj   +1 more source

Home - About - Disclaimer - Privacy