Results 51 to 60 of about 36,781 (141)

Invertibility in the flag kernels algebra on the Heisenberg group

open access: yes, 2015
Flag kernels are tempered distributions which generalize these of Calderon-Zygmund type. For any homogeneous group $\mathbb{G}$ the class of operators which acts on $L^{2}(\mathbb{G})$ by convolution with a flag kernel is closed under composition. In the
Kępa, Grzegorz
core   +1 more source

Quasilinearization-Collocation Method for the Numerical Solution of Nonlinear Fractional Volterra Integro-Differential Equations With Logarithmic Weakly Singular Kernel

open access: yesInternational Journal of Mathematics and Mathematical Sciences
In this paper, we use quasilinearization technique, product integration rule, and collocation method to present a new numerical method to solve nonlinear fractional Volterra integro-differential equations with logarithmic weakly singular kernel.
Qays Atshan Almusawi, Esmaeil Najafi
doaj   +1 more source

Approximation of partial integro differential equations with a weakly singular kernel using local meshless method

open access: yesAlexandria Engineering Journal, 2020
In this work, a meshless method in local setting and Laplace transform are coupled to approximate partial integro-differential equations (PIDEs). The typical method of obtaining the approximate solution of such type of equations is to use the meshless ...
Kamran, Gohar Ali, J.F. Gómez-Aguilar
doaj   +1 more source

Stable characteristic classes of smooth manifold bundles [PDF]

open access: yes, 2009
Characteristic classes of oriented vector bundles can be identified with cohomology classes of the disjoint union of classifying spaces BSO_n of special orthogonal groups SO_n with n=0,1,...
Sadykov, Rustam
core  

Smoothness of solutions of Volterra integral equations with weakly singular kernels [PDF]

open access: yes
Solution smoothness of Volterra integral equations with weakly singular ...
Feldstein, A., Miller, R. K.
core   +1 more source

Singular limit of an integrodifferential system related to the entropy balance

open access: yes, 2014
A thermodynamic model describing phase transitions with thermal memory, in terms of an entropy equation and a momentum balance for the microforces, is adressed. Convergence results and error estimates are proved for the related integrodifferential system
Bonetti, Elena   +2 more
core   +1 more source

The Approximate Solution of Fredholm Integral Equations with Oscillatory Trigonometric Kernels

open access: yesJournal of Applied Mathematics, 2014
A method for approximating the solution of weakly singular Fredholm integral equation of the second kind with highly oscillatory trigonometric kernel is presented.
Qinghua Wu
doaj   +1 more source

Numerical solution of Volterra partial integro-differential equations based on sinc-collocation method

open access: yesAdvances in Difference Equations, 2017
We provide the numerical solution of a Volterra integro-differential equation of parabolic type with memory term subject to initial boundary value conditions.
Atefeh Fahim   +3 more
doaj   +1 more source

Mathematical modelling and calculation of hydraulic engineering constructions such as dam-plate in view of hydrodynamical pressure of water and seismic loading [PDF]

open access: yesИнженерно-строительный журнал, 2011
In present paper the problem about the forced vibrations of hydraulic engineering constructions such as dams is considered in view of hydrodynamical pressure of water and seismic loading.
B. Kh. Eshmatov   +4 more
doaj  

The Optimal L2-Norm Error Estimate of a Weak Galerkin Finite Element Method for a Multi-Dimensional Evolution Equation with a Weakly Singular Kernel

open access: yesFractal and Fractional
This paper proposes a weak Galerkin (WG) finite element method for solving a multi-dimensional evolution equation with a weakly singular kernel. The temporal discretization employs the backward Euler scheme, while the fractional integral term is ...
Haopan Zhou, Jun Zhou, Hongbin Chen
doaj   +1 more source

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