Results 21 to 30 of about 27,888 (166)

Nonlocal inverse boundary-value problem for a 2D parabolic equation with integral overdetermination condition

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
This article studies a nonlocal inverse boundary-value problem for a two-dimensional second-order parabolic equation in a rectangular domain. The purpose of the article is to determine the unknown coefficient and the solution of the considered problem ...
E.I. Azizbayov, Y.T. Mehraliyev
doaj   +1 more source

Solving of the Inverse Boundary Value Problem for the Heat Conduction Equation in Two Intervals of Time

open access: yesAlgorithms, 2023
The boundary value problem, BVP, for the PDE heat equation is studied and explained in this article. The problem declaration comprises two intervals; the (0, T) is the first interval and labels the heating of the inside burning chamber, and the second (T,
Bashar Talib Al-Nuaimi   +5 more
doaj   +1 more source

An inverse Stefan problem: identification of boundary value

open access: yesJournal of Computational and Applied Mathematics, 1996
A spatially one-dimensional inverse Stefan problem is considered: the moving boundary (its evolution in time) is given, the temporal evolution of the temperature at the non-moving boundary is to be determined. The standard integral equation of first kind for this problem is transformed into an equivalent convolution equation.
Ang, D.D.   +2 more
openaire   +2 more sources

Inverse spectral problem of a class of fourth-order eigenparameter-dependent boundary value problems

open access: yesAdvances in Difference Equations, 2020
This paper deals with a class of inverse spectral problems of fourth-order boundary value problems with eigenparameter-dependent boundary conditions.
Ji-jun Ao, Liang Zhang
doaj   +1 more source

An Inverse Boundary Value Problem Arising in Nonlinear Acoustics

open access: yesSIAM Journal on Mathematical Analysis, 2023
36 pages.
Uhlmann, Gunther, Zhang, Yang
openaire   +2 more sources

The Numerical Solution of an Inverse Pseudoparabolic Problem with a Boundary Integral Observation

open access: yesMathematics
Direct and inverse problems for a pseudoparabolic equation are considered. The direct (forward) problem is to find the solution of the corresponding initial–boundary-value problem for known model parameters, as well as the initial and boundary conditions.
Miglena N. Koleva, Lubin G. Vulkov
doaj   +1 more source

On a nonlinear inverse boundary value problem for linearized sixth-order Boussinesq equation with an additional integral condition

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. A huge number of mathematical models are called Boussinesq equations; therefore, a wide range of sixth-order Boussinesq equations attracts a lot of attention from outside researchers around the world. Materials and methods.
Araz Salamulla Farajov
doaj   +1 more source

Direct and inverse problems for thermal grooving by surface diffusion with time dependent Mullins coefficient

open access: yesMathematical Modelling and Analysis, 2021
We consider the Mullins’ equation of a single surface grooving when the surface diffusion is not considered as very slow. This problem can be formed by a surface grooving of profiles in a finite space region.
Mansur I. Ismailov
doaj   +1 more source

A time-nonlocal inverse problem for a hyperbolic equation with an integral overdetermination condition

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
This article is concerned with the study of the unique solvability of a time-nonlocal inverse boundary value problem for second-order hyperbolic equation with an integral overdetermination condition.
Yashar Mehraliyev, Elvin Azizbayov
doaj   +1 more source

Conditional Optimization and One Inverse Boundary Value Problem [PDF]

open access: yesMathematical Problems in Engineering, 2015
Here we construct different approximate solutions of the plane inverse boundary value problem of aerohydrodynamics. In order to do this we solve some conditional optimization problems in the norms∥·∥2,∥·∥∞, and ∥·∥1and some of their generalizations.
openaire   +4 more sources

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