Results 41 to 50 of about 799,624 (312)
Dichotomy and almost automorphic solution of difference system
Electronic Journal of Qualitative Theory of Differential Equations, 2013 We study almost automorphic solutions of recurrence relations with values in a Banach space $V$ for quasilinear almost automorphic difference systems.
Samuel Castillo, Manuel Pinto
doaj +1 more source
Linearized asymptotic stability for nabla Riemann-Liouville fractional difference equation [PDF]
Archives of Control SciencesIn this paper,we present a theorem about stability of nonlinear fractional difference equation with Riemann-Liouvile difference operator. The result is a version of classical theorem on linear approximation and to derive them,we prove the variation of ...
Pham The Anh +2 more
doaj +1 more source
On different concepts of closedness of linear operators [PDF]
Operators and Matrices, 2014 The purpose of this paper is to introduce, by means of the extensions of almost closed operators, the notion of almost closable linear operator acting in a Hilbert or Banach space. This class of operators is strictly included in the class of all unbounded linear operators, it contains the set of all closable operators and that of all almost closed ...
Sanaa Messirdi +2 more
openaire +1 more source
Applied Koopman Operator Theory for Power Systems Technology [PDF]
, 2016 Koopman operator is a composition operator defined for a dynamical system described by nonlinear differential or difference equation. Although the original system is nonlinear and evolves on a finite-dimensional state space, the Koopman operator itself ...
Hikihara, Takashi +3 more
core +2 more sources
Компьютерная оптика, 2021 We consider the statistical properties of different mosaic filters. We demonstrate that in Pitiev's morphology, the measure of shape complexity is directly related to the shape simplicity measure based on morphological correlation coefficient (MCC ...
Y.V. Vizilter +2 more
doaj +1 more source
Stein's method for comparison of univariate distributions [PDF]
, 2016 We propose a new general version of Stein's method for univariate distributions. In particular we propose a canonical definition of the Stein operator of a probability distribution which is based on a linear difference or differential-type operator.
Ley, Christophe +2 more
core +4 more sources
An Operator-Difference Method for Telegraph Equations Arising in Transmission Lines
Discrete Dynamics in Nature and Society, 2011 A second-order linear hyperbolic equation with time-derivative term subject to appropriate initial and Dirichlet boundary conditions is considered. Second-order unconditionally absolutely stable difference scheme in (Ashyralyev et al.
Mehmet Emir Koksal
doaj +1 more source
A hybrid fractional optimal control for a novel Coronavirus (2019-nCov) mathematical model
Journal of Advanced Research, 2021 Introduction: Coronavirus COVID-19 pandemic is the defining global health crisis of our time and the greatest challenge we have faced since world war two. To describe this disease mathematically, we noted that COVID-19, due to uncertainties associated to
N.H. Sweilam +2 more
doaj +1 more source
Semiconjugate Factorizations of Higher Order Linear Difference Equations in Rings [PDF]
, 2013 We study linear difference equations with variable coefficients in a ring using a new nonlinear method. In a ring with identity, if the homogeneous part of the linear equation has a solution in the unit group of the ring (i.e., a unitary solution) then ...
Sedaghat, H.
core +1 more source
Reducible linear difference operators
Aequationes Mathematicae, 1972 Let \(f = \sum_{i=0}^n A^{(i)}y_i\), \(A^{(n)}\ne 0\), be a linear homogeneous difference polynomial (LHDP) with coefficients in the difference field \(k\) of characteristic 0. The author defines \(f\) to be reducible at \(q\) to order \(r\), \(r 2\) there exists a class of second order difference equations reducible at \(q\) but not at any \(t1 ...
openaire +2 more sources