Results 261 to 270 of about 783,161 (291)

Integration points for the reduction of boundary conditions

Theoretica Chimica Acta, 1973
An analysis of a method for the numerical evaluation of the integral \(\int\limits_a^b { f\left( x \right)} dx\) is presented. The method introduces a change of variable, x = x(q), with the property that dnx/dqnis zero at x = a, x = b for n = 0, 1, 2,... N, where N is an integer to be chosen.
N. C. Handy, S. F. Boys
openaire   +1 more source

Boundary Value Problems With Integral Conditions

AIP Conference Proceedings, 2011
The weakly perturbed nonlinear boundary value problems (BVP) for almost linear systems of ordinary differential equations (ODE) are considered. We assume that the nonlinear part contain an additional function, which defines the perturbation as singular. Then the Poincare method is not applicable. The problem of existence, uniqueness and construction of
L. I. Karandzhulov, N. D. Sirakova, George Venkov, Ralitza Kovacheva, Vesela Pasheva   +4 more
openaire   +1 more source

Boundary conditions of Feynman path integrals

Nuclear Physics, 1966
Abstract Feynman path integral expressions for transition matrix elements between bare vacua are derived for scalar and spinor fields. Proper boundary conditions are used to avoid the usual somewhat artificial iϵ prescriptions of previous authors.
openaire   +1 more source

Boundary conditions for integrable quantum systems

Journal of Physics A: Mathematical and General, 1988
A new class of boundary conditions is described for quantum systems integrable by means of the quantum inverse scattering (R-matrix) method. The method proposed allows the author to treat open quantum chains with appropriate boundary terms in the Hamiltonian.
openaire   +1 more source

The Goursat problem with integral boundary conditions

Ukrainian Mathematical Journal, 1990
Here is proved uniqueness and existence of the classical solution of a nonlinear Goursat problem with integral boundary conditions. This main result of the paper is obtained on the basis of the contraction mapping principle and the method of successive approximations. A priori estimates for the solution in question and its partial derivatives are found.
openaire   +1 more source

Fractional Boundary Value Problems with Integral and Anti-periodic Boundary Conditions

Bulletin of the Malaysian Mathematical Sciences Society, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

BINN: A deep learning approach for computational mechanics problems based on boundary integral equations

Computer Methods in Applied Mechanics and Engineering, 2023
Jia Sun, Yizheng Wang, Zhenhan Yao
exaly  

Solving Boundary Integral Problems with BEM++

ACM Transactions on Mathematical Software, 2015
Wojciech Smigaj, Timo Betcke, Simon R Arridge   +2 more
exaly  

Boundary integral equation method in thermoelasticity part I: general analysis

Applied Mathematical Modelling, 1983
J Sladek
exaly  

A General Algorithm for the Numerical Solution of Hypersingular Boundary Integral Equations

Journal of Applied Mechanics, Transactions ASME, 1992
M Guiggiani, T J Rudolphi, F J Rizzo
exaly