Results 11 to 20 of about 149,442,687 (225)

Finite-difference solutions of tenth-order boundary-value problems [PDF]

open access: yes, 1994
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In this thesis finite difference methods are used to obtain numerical solutions for a class of high-order ordinary differential equations with applications ...
Siddiqui, Aijaz Ahmad
core   +7 more sources

Boundary value problems for the Helmholtz equation in a half-plane [PDF]

open access: yes, 1994
The Dirichlet and impedance boundary value problems for the Helmholtz equation in a half-plane with bounded continuous boundary data are studied. For the Dirichlet problem the solution can be constructed explicitly. We point out that, for wavenumbers k >
Chandler-Wilde, SN
core   +6 more sources

Multiderivative methods for nonlinear second order boundary value problems [PDF]

open access: yes, 1985
Second, fourth and sixth order methods are developed and analysed for the numerical solution of non-linear second order boundary value problems. The methods arise from a two-step recurrence relation involving exponential terms, these being replaced by ...
Tirmizi, S I A, Twizell, E H
core   +6 more sources

Asymptotically accurate error estimates of exponential convergence for the trapezoidal rule

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2021
In many applied problems, efficient calculation of quadratures with high accuracy is required. The examples are: calculation of special functions of mathematical physics, calculation of Fourier coefficients of a given function, Fourier and Laplace ...
Aleksandr A. Belov   +1 more
doaj   +1 more source

Numerical solution of two dimensional harmonic boundary problems containing singularities by conformal transformation methods [PDF]

open access: yes, 1971
Numerical solutions to a class of two dimensional harmonic mixed boundary value problems defined on rectangular domains and containing singularities are obtained using conformal transformation methods.
Whiteman, J R, Papamichael, N
core   +6 more sources

Initial and boundary value problems in two and three dimensions [PDF]

open access: yes, 2010
This thesis: (a) presents the solution of several boundary value problems (BVPs) for the Laplace and the modified Helmholtz equations in the interior of an equilateral triangle; (b) presents the solution of the heat equation in the interior of an ...

core   +2 more sources

Plane problem of discrete environment mechanics

open access: yesПроблеми трибології, 2022
Many engineering problems related to the design of structures and machines, the mathematical description of technological processes, etc., are reduced to the need to solve a plane problem for materials with a significant effect of internal friction on ...
O.V. Bagrii
doaj   +1 more source

On eigenvalues of third order composite type equations with regular boundary value conditions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In the paper the question about distribution of eigenvalues of third - order composite type equations with regular, more precisely, with periodic boundary value conditions is studied.
N.S. Imanbaev, M.N. Ospanov
doaj   +1 more source

Elastic Equilibrium of Porous Cosserat Media with Double Porosity

open access: yesAdvances in Mathematical Physics, 2016
The static equilibrium of porous elastic materials with double porosity is considered in the case of an elastic Cosserat medium. The corresponding three-dimensional system of differential equations is derived.
Roman Janjgava
doaj   +1 more source

Numerical methods for sixth-order boundary-value problems [PDF]

open access: yes, 1990
A family of numerical methods is developed for the solution of special nonlinear sixth-order boundary-value problems. Methods with second-, fourth-, sixth- and eighth-order convergence are contained in the family.
Twizell, E H, Boutayeb, A
core   +6 more sources

Home - About - Disclaimer - Privacy