Results 71 to 80 of about 345,546 (151)

Variational methods for solving nonlinear boundary problems of statics of hyper-elastic membranes

open access: yes, 1998
A number of important results of studying large deformations of hyper-elastic shells are obtained using discrete methods of mathematical physics. In the present paper, using the variational method for solving nonlinear boundary problems of statics of ...
Biderman V.L.   +6 more
core   +1 more source

DIFFERENTIAL TRANSFORM METHOD FOR SOLVING A CLASS OF SINGULAR TWO-POINT BOUNDARY VALUE PROBLEMS

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
: This paper applies the differential transform method to search for semi numerical-analytical solutions of a class of singular two-point boundary value problems.
Vedat ERTÜRK
doaj  

Nonexistence of solutions for singular nonlinear ordinary inequalities

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper we prove nonexistence theorems of nonnegative nontrivial solutions for a singular nonlinear ordinary inequality in bounded domains with singular points on the boundary. The proofs are based on the test function method developed by Mitidieri
Xiaohong Li
doaj   +1 more source

SOME MORE ON LOGARITHMIC SINGULARITY INTEGRATION IN BOUNDARY ELEMENT METOD

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
The accuracy of calculations of integrals with logarithmic singularities for two methods, namely the method of ignoring singularities and the method of subtraction (consisting in separating the singular part from the remaining non-singular), are ...
Tomasz Rymarczyk, Jan Sikora
doaj   +1 more source

Robust computing technique for reaction diffusion 2D parabolic problems with shift

open access: yesMathematical Modelling and Analysis
Higher dimensional singularly perturbed problems frequently appears in many mathematical modelling. Solving such higher dimensional problem is not as much easy as possible. So order reducing technique namely alternating direction method is one such good
Veerasamy Subburayan, Srinivasan Natesan
doaj   +1 more source

Computation of turbulent boundary layers on curved surfaces, 1 June 1975 - 31 January 1976 [PDF]

open access: yes
An accurate method was developed for predicting effects of streamline curvature and coordinate system rotation on turbulent boundary layers. A new two-equation model of turbulence was developed which serves as the basis of the study.
Chambers, T. L., Wilcox, D. C.
core   +1 more source

Residue curve maps of 4-component systems. Singular point type determination for a 4-component azeotrope and the sets of feasible structures

open access: yesТонкие химические технологии, 2011
A method of singular point type determination for a 4-component azeotrope is proposed. The method deals with 2-dimensional structures known to be boundary surfaces of the residue curve map.
L. A. Serafimov   +3 more
doaj  

Method of singular integral equations in liquid vibration problems for coaxial shells

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія: Математичне моделювання, інформаційні технології, автоматизовані системи управління, 2019
The paper deals with the problem of free vibrations of an ideal incompressible fluid in coaxial shells of revolution. It is assumed that the motion of the fluid is irrotational that allows us to introduce the velocity potential. In these suppositions the
Naumenko Yury Vytalievich   +3 more
doaj   +1 more source

Bifurcation curves for singular and nonsingular problems with nonlinear boundary conditions

open access: yesElectronic Journal of Differential Equations, 2018
We discuss a quadrature method for generating bifurcation curves of positive solutions to some autonomous boundary value problems with nonlinear boundary conditions.
Jerome Goddard   +3 more
doaj  

System of singular integral equations in the problem of electromagnetic oscillations of a graphene-coated dielectric ball

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. Boundary value transmission problems for a system of Maxwell's equations are fundamental in electrodynamics. Recently, there has been interest in problems involving the presence of a thin layer of graphene on the surface, which changes the ...
Yu.G. Smirnov, O.V. Kondyrev
doaj   +1 more source

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