Results 31 to 40 of about 198,412 (286)

Relations between Spectrum Curves of Discrete Sturm-Liouville Problem with Nonlocal Boundary Conditions and Graph Theory. II

open access: yesLietuvos Matematikos Rinkinys, 2021
In this paper, relations between discrete Sturm--Liouville problem with nonlocal integral boundary condition characteristics (poles, critical points, spectrum curves) and graphs characteristics (vertices, edges and faces) were found. The previous article
Jonas Vitkauskas, Artūras Štikonas
doaj   +1 more source

A new method based on polynomials equipped with a parameter to solve two parabolic inverse problems with a nonlocal boundary condition

open access: yes, 2020
In this paper, a new method is used based on polynomials equipped with a parameter to solve two parabolic inverse problems. These inverse problems have nonlocal boundary conditions and over-determination of data that make it difficult to solve these ...
J. Hajishafieiha, S. Abbasbandy
semanticscholar   +1 more source

Initial boundary value problem for a semilinear parabolic equation with absorption and nonlinear nonlocal boundary condition* [PDF]

open access: yesLithuanian Mathematical Journal, 2016
We consider an initial boundary value problem for a semilinear parabolic equation with absorption and nonlinear nonlocal Neumann boundary condition. We prove a comparison principle and the existence of a local solution and study the problem of uniqueness
A. Gladkov
semanticscholar   +1 more source

On a Problem of Cross-Diffusion with Nonlocal Boundary Conditions [PDF]

open access: yesJournal of Siberian Federal University. Mathematics & Physics, 2019
Condition of global existence of solution of a non-linear system of cross-diffusion with non-linear boundary conditions is studied in the paper.
Rakhmonov, Zafar R., Urunbayev, Jasur E.
openaire   +2 more sources

Chebyshev iteration for the problem with nonlocal boundary condition

open access: yesLietuvos Matematikos Rinkinys, 2004
We considered Poisson differential equation with Dirichlet boundary conditions and one nonlocal boundary condition. Finite-difference scheme was investigated for this problem.
Mifodijus Sapagovas   +2 more
doaj   +3 more sources

Combination of the Improved Diffraction Nonlocal Boundary Condition and Three-Dimensional Wide-Angle Parabolic Equation Decomposition Model for Predicting Radio Wave Propagation

open access: yesInternational Journal of Antennas and Propagation, 2017
Diffraction nonlocal boundary condition (BC) is one kind of the transparent boundary condition which is used in the finite-difference (FD) parabolic equation (PE).
Ruidong Wang   +3 more
doaj   +1 more source

Investigation of the spectrum for Sturm–Liouville problems with a nonlocal boundary condition

open access: yesLietuvos Matematikos Rinkinys, 2013
In this paper, we analyze the Sturm–Liouville problem with one classical first type boundary condition and the other Samarskii–Bitsadze type nonlocal boundary condition.
Kristina Skučaitė-Bingelė   +1 more
doaj   +1 more source

NEUMANN BOUNDARY CONDITION FOR A NONLOCAL BIHARMONIC EQUATION

open access: yesBulletin of the South Ural State University series "Mathematics. Mechanics. Physics", 2022
The solvability conditions for a class of boundary value problems for a nonlocal biharmonic equation in the unit ball with the Neumann conditions on the boundary are studied. The nonlocality of the equation is generated by some orthogonal matrix. The presence and uniqueness of a solution to the proposed Neumann boundary condition is examined, and an ...
B.Kh. Turmetov, V.V. Karachik
openaire   +2 more sources

Diffusion with nonlocal boundary conditions

open access: yesJournal of Functional Analysis, 2016
18 pages, no figures; comments of the referees ...
Arendt, Wolfgang   +2 more
openaire   +3 more sources

Investigation of spectrum curves for a Sturm-Liouville problem with two-point nonlocal boundary conditions

open access: yesMathematical Modelling and Analysis, 2020
The article investigates the Sturm–Liouville problem with one classical and another nonlocal two-point boundary condition. We analyze zeroes, poles and critical points of the characteristic function and how the properties of this function depend on ...
Kristina Bingelė   +2 more
doaj   +1 more source

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