Results 11 to 20 of about 139,571 (138)

Solving weakly singular integral equations utilizing the meshless local discrete collocation technique

open access: yesAlexandria Engineering Journal, 2018
The current work presents a computational scheme to solve weakly singular integral equations of the second kind. The discrete collocation method in addition to the moving least squares (MLS) technique established on scattered points is utilized to ...
Pouria Assari
doaj   +3 more sources

On Weakly Singular Versions of Discrete Nonlinear Inequalities and Applications

open access: yesAbstract and Applied Analysis, 2014
Some new weakly singular versions of discrete nonlinear inequalities are established, which generalize some existing weakly singular inequalities and can be used in the analysis of nonlinear Volterra type difference equations with weakly singular kernels.
Kelong Cheng, Chunxiang Guo, Qingke Zeng
doaj   +1 more source

Idempotent Reflexive rings whose every simle singular right module are yj-injective [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2011
In this paper we study rightidempotent reflexive ring whose simple singular right R-module isYJ-injective, we prove that this type of ring is right weakly regular ring, we show that if R is N duo or NCI ring and R is right idempotent reflexive ring ...
doaj   +1 more source

On singular projective deformations of two second class totally focal pseudocongruences of planes

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
Let C:L→L¯ be a projective deformation of the second order of two totally focal pseudocongruences L and L¯ of (m−1)-planes in projective spaces Pn and P¯n, 2m−1 ...
Ludmila Goldberg
doaj   +1 more source

Optical soliton perturbation in parabolic law medium having weak non-local nonlinearity by a couple of strategic integration architectures

open access: yesResults in Physics, 2019
In this paper, the governing model with the inclusion of parabolic law nonlinearity, weakly non-local nonlinearity in addition to perturbation terms is examined for the sake of uncovering quite important optical soliton solutions.
Anjan Biswas   +5 more
doaj   +1 more source

Long Wavelength Coherency in Well Connected Electric Power Networks

open access: yesIEEE Access, 2022
We investigate coherent oscillations in large scale transmission power grids, where large groups of generators respond in unison to a distant disturbance. Such long wavelength coherent phenomena are known as inter-area oscillations.
Julian Fritzsch, Philippe Jacquod
doaj   +1 more source

Interpolation method for solving Volterra integral equations with weakly singular kernel using an advanced barycentric Lagrange formula

open access: yesAin Shams Engineering Journal, 2022
We presented an interpolation method for solving weakly singular Volterra integral equations of the second kind (SVK2). The method based on the barycentric Lagrange interpolation.. For the chosen nodes of the two singular kernel variables, we created two
E.S. Shoukralla   +3 more
doaj   +1 more source

Weakly Z symmetric manifolds [PDF]

open access: yes, 2011
We introduce a new kind of Riemannian manifold that includes weakly-, pseudo- and pseudo projective- Ricci symmetric manifolds. The manifold is defined through a generalization of the so called Z tensor; it is named "weakly Z symmetric" and denoted by ...
A. Derdzinski   +32 more
core   +2 more sources

Product integration for weakly singular integro-differential equations

open access: yesMathematical Modelling and Analysis, 2011
On the basis of product integration techniques a discrete version of a piecewise polynomial collocation method for the numerical solution of initial or boundary value problems of linear Fredholm integro-differential equations with weakly singular kernels
Arvet Pedas, Enn Tamme
doaj   +1 more source

Asymptotics of integrodifferential models with integrable kernels II

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
Nonlinear singularly perturbed Volterra integrodifferential equations with weakly singular kernels are investigated using singular perturbation methods, the Mellin transform technique, and the theory of fractional integration.
Angelina M. Bijura
doaj   +1 more source

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