Results 11 to 20 of about 3,079 (223)

On a Kirchhoff Equation in Bounded Domains

open access: yesAdvanced Nonlinear Studies, 2018
In this paper, we consider the following Kirchhoff equation:
Huang Yisheng, Wu Yuanze
doaj   +3 more sources

On isolated singularities of Kirchhoff equations [PDF]

open access: yesAdvances in Nonlinear Analysis, 2020
In this note, we study isolated singular positive solutions of Kirchhoff ...
Chen Huyuan   +2 more
doaj   +3 more sources

On the Normal Form of the Kirchhoff Equation [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2020
AbstractConsider the Kirchhoff equation $$\begin{aligned} \partial _{tt} u - \Delta u \Big ( 1 + \int _{\mathbb {T}^d} |\nabla u|^2 \Big ) = 0 \end{aligned}$$ ∂
BALDI, Pietro, HAUS, Emanuele
openaire   +4 more sources

Optimal Control of the Kirchhoff Equation

open access: yesCoRR, 2021
We consider an optimal control problem for the steady-state Kirchhoff equation, a prototype for nonlocal partial differential equations, different from fractional powers of closed operators. Existence and uniqueness of solutions of the state equation, existence of global optimal solutions, differentiability of the control-to-state map and first-order ...
Masoumeh Hashemi   +2 more
openaire   +2 more sources

On the critical $p$-Kirchhoff equation

open access: yesTopological Methods in Nonlinear Analysis, 2023
We study a nonlocal elliptic equation of $p$-Kirchhoff type involving the critical Sobolev exponent. First we give sufficient conditions for the $(\text{PS})$ condition to hold. Then we prove some existence and multiplicity results using tools from Morse theory, in particular, the notion of a cohomological local splitting and eigenvalues based on the
Erisa Hasani, Kanishka Perera
openaire   +3 more sources

On the cases of Kirchhoff and Chaplygin of the Kirchhoff equations [PDF]

open access: yesRegular and Chaotic Dynamics, 2012
It is proven that the general Kirchhoff case of the Kirchhoff equations for $B\ne 0$ is not algebraic complete integrable system. Similar analytic behavior of the general solution of the Chaplygin case is detected. Four-dimensional analogues of the Kirchhoff and the Chaplygin cases are defined on $e(4)$ with the standard Lie-Poisson bracket.
Dragović, Vladimir, Gajić, Borislav
openaire   +3 more sources

Nonlinear perturbations of the Kirchhoff equation

open access: yesElectronic Journal of Differential Equations, 2017
In this article we study the existence and uniqueness of local solutions for the initial-boundary value problem for the Kirchhoff equation $$\displaylines{ u'' - M(t,\|u(t)\|^{2})\Delta u + |u|^{\rho} =f \quad\text{in } \Omega \times (0, T_0), \cr u=
Manuel Milla Miranda   +2 more
doaj   +2 more sources

Optimal control of the stationary Kirchhoff equation

open access: yesComputational Optimization and Applications, 2023
AbstractWe consider an optimal control problem for the steady-state Kirchhoff equation, a prototype for nonlocal partial differential equations, different from fractional powers of closed operators. Existence and uniqueness of solutions of the state equation, existence of global optimal solutions, differentiability of the control-to-state map and first-
Masoumeh Hashemi   +2 more
openaire   +2 more sources

Multiplicity of Solutions for an Elliptic Kirchhoff Equation

open access: yesMilan Journal of Mathematics, 2022
AbstractIn this paper we study the existence of positive solution to the Kirchhoff elliptic problem $$\begin{aligned} {\left\{ \begin{array}{ll} \displaystyle -\left( 1+\gamma G'\left( \Vert \nabla u\Vert ^2_{L^2(\Omega )}\right) \right) \Delta u = \lambda f(u) &{} \text{ in } \; \Omega ,\\ u = 0 &{} \text{ on } \; \partial \Omega ,\\ \end ...
Arcoya, David   +2 more
openaire   +4 more sources

Global Well-Posedness of the Kirchhoff Equation and Kirchhoff Systems [PDF]

open access: yes, 2014
This article is devoted to review the known results on global well-posedness for the Cauchy problem to the Kirchhoff equation and Kirchhoff systems with small data. Similar results will be obtained for the initial-boundary value problems in exterior domains with compact boundary.
Matsuyama, T, Ruzhansky, M
openaire   +4 more sources

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