Results 21 to 30 of about 157 (41)

Characterization of self-adjoint extensions for discrete symplectic systems

open access: yes, 2016
All self-adjoint extensions of minimal linear relation associated with the discrete symplectic system are characterized. Especially, for the scalar case on a finite discrete interval some equivalent forms and the uniqueness of the given expression are ...
Clark, Stephen, Zemánek, Petr
core   +1 more source

Support properties of the intertwining and the mean value operators in Dunkl's analysis [PDF]

open access: yes, 2016
In this paper we show that the Dunkl intertwining operator has a compact support which is invariant by the associated Coxeter-Weyl group. This property enables us to determine explicitely the support of the volume mean value operator, a fundamental tool ...
Gallardo, Léonard, Rejeb, Chaabane
core   +1 more source

Asymptotic iteration method for solving Hahn difference equations. [PDF]

open access: yesAdv Differ Equ, 2021
MacQuarrie L, Saad N, Islam MS.
europepmc   +1 more source

Parametrization of spectral surfaces of a class of periodic 5-diagonal matrices

open access: yes, 2011
The main result of this work is a parametric description of the spectral surfaces of a class of periodic 5-diagonal matrices, related to the strong moment problem. This class is a self-adjoint twin of the class of CMV matrices.
Moale, Ionela, Yuditskii, Peter
core  

On homogeneous second order linear general quantum difference equations. [PDF]

open access: yesJ Inequal Appl, 2017
Faried N, Shehata EM, El Zafarani RM.
europepmc   +1 more source
Some of the next articles are maybe not open access.

An analysis of polynomial sequences and their application to discrete fractional operators

Journal of Difference Equations and Applications, 2021
Christopher Goodrich   +1 more
exaly  

Inverse problems for Jacobi operators with mixed spectral data

Journal of Difference Equations and Applications, 2021
Burak Hatinoglu
exaly  

Classification of nilpotent evolution algebras and extensions of their derivations

Communications in Algebra, 2020
Farrukh Mukhamedov   +2 more
exaly  

Some properties on degenerate Fubini polynomials

2022
Taekyun Kim, D S Kim, Hyunseok Lee
exaly  

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