Spectral properties of a fourth‐order differential operator on a network

R Kulaev, A Urtaeva - Mathematical Methods in the Applied …, 2023 - Wiley Online Library
In this paper, we study spectral properties of a fourth‐order differential operator on a
network, which is a model of the Euler‐Bernoulli beam system. We propose a new approach …

THE DEFORMATIONS PROBLEM FOR THE STIELTJES STRINGS SYSTEM WITH A NONLINEAR CONDITION.

M ZVEREVA, M KAMENSKII… - … of Nonlinear & …, 2023 - search.ebscohost.com
In the present paper, we investigate a problem, describing the deformations process for the
Stieltjes strings system located along a geometric star-shaped graph under the influence of …

On the positive invertibility of a differential operator on a graph

R Kulaev, S Karkuzaev - Applicable Analysis, 2024 - Taylor & Francis
In this article, we study a fourth-order differential operator L λ on a graph, depending on a
real parameter λ. The operator L λ is connected with a model of the Euler–Bernoulli beam …

On the multiplicity of eigenvalues of a fourth-order differential operator on a graph

RC Kulaev, AA Urtaeva - Differential Equations, 2022 - Springer
We study the properties of eigenvalues of a boundary value problem for a fourth-order
differential equation on a geometric graph modeling the elastic deformations of a system of …

Oscillatory properties of selfadjoint boundary problems of the fourth order

A Vladimirov, A Shkalikov - St. Petersburg Mathematical Journal, 2024 - ams.org
Oscillatory properties of selfadjoint boundary problems of the fourth order Page 1 Algebra i
analiz St. Petersburg Math. J. Tom 35 (2023), 1 Vol. 35 (2024), No. 1, Pages 83–100 https://doi.org/10.1090/spmj/1794 …

On the Existence of a Solution of a Boundary Value Problem on a Graph for a Nonlinear Equation of the Fourth Order

RC Kulaev, AA Urtaeva - Differential Equations, 2023 - Springer
A fourth-order nonlinear differential equation on a network that is a model of a system of
Euler–Bernoulli rods is considered. Based on the monotone iteration method, the existence …

Upper bounds for the eigenvalue multiplicities of a fourth-order differential operator on a graph

AA Urtaeva - Journal of Applied and Industrial Mathematics, 2024 - Springer
The paper studies a model of a planar beam structure described by a fourth-order boundary
value problem on a geometric graph. Elastic-hinge joint conditions are posed at the interior …

Модель деформаций системы стилтьесовских струн с нелинейным условием

МБ Зверева - Вестник Удмуртского университета. Математика …, 2022 - mathnet.ru
Здесь функции ui (x) определяют деформации каждой из струн; Fi (x) описывают
распределение внешней нагрузки; pi (x) характеризуют упругость струн; Qi (x) …

Lower Bounds for the Minimum Eigenvalue of the bi-Laplacian on a Graph

RC Kulaev, SA Karkuzaev - Differential Equations, 2024 - Springer
Lower Bounds for the Minimum Eigenvalue of the bi-Laplacian on a Graph | Differential
Equations Skip to main content Springer Nature Link Account Menu Find a journal Publish …

Boundary Value Problem on a Geometric Star-Graph with a Nonlinear Condition at a Node

MS Burlutskaya, MB Zvereva, MI Kamenskii - Mathematical Notes, 2023 - Springer
Mathematical models described in terms of a branching argument, ie, an argument that
takes values from some geometric graph arise in the analysis of processes in complex …