Results 11 to 20 of about 41,256 (237)

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

Multiple positive solutions for a class of Kirchhoff type equations with indefinite nonlinearities

open access: yesAdvances in Nonlinear Analysis, 2021
We study the following Kirchhoff type equation:
Che Guofeng, Wu Tsung-fang
doaj   +1 more source

Existence of least energy sign-changing solutions to Kirchhoff equation with critical growth

open access: yesJournal of Hebei University of Science and Technology, 2020
In order to deeply study the characteristics of Kirchhoff equation, the existence result of the least energy sign-changing solutions to Kirchhoff equation with Hartree term and critical growth nonlinear term was discussed.
Wenguo LIANG, Yongyan HUANG
doaj   +1 more source

Comparison of the Wiener and Kirchhoff Indices of Random Pentachains

open access: yesJournal of Mathematics, 2021
Let G be a connected (molecule) graph. The Wiener index WG and Kirchhoff index KfG of G are defined as the sum of distances and the resistance distances between all unordered pairs of vertices in G, respectively.
Shouliu Wei   +3 more
doaj   +1 more source

n-Kirchhoff type equations with exponential nonlinearities [PDF]

open access: yesRevista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2015
Results from earlier version are improved. RACSAM - Revista de la Real Academia de Ciencias Exactas, F\'isicas y Naturales. Serie A.
Goyal, Sarika   +2 more
openaire   +3 more sources

Existence of ground state for fractional Kirchhoff equation with L 2 $L^{2}$ critical exponents

open access: yesBoundary Value Problems, 2020
In this paper, we consider a class of fractional Kirchhoff equations with L 2 $L^{2}$ critical exponents. By using the scaling technique and concentration-compactness principle we obtain the existence and nonexistence of ground state for fractional ...
Yaling Han, Yimin Zhang
doaj   +1 more source

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

Kirchhoff equations with strong damping [PDF]

open access: yesJournal of Evolution Equations, 2016
We consider Kirchhoff equations with strong damping, namely with a friction term which depends on a power of the "elastic" operator. We address local and global existence of solutions in two different regimes depending on the exponent in the friction term.
GHISI, MARINA, GOBBINO, MASSIMO
openaire   +2 more sources

The vanishing viscosity limit for Hamilton-Jacobi equations on Networks [PDF]

open access: yes, 2012
For a Hamilton-Jacobi equation defined on a network, we introduce its vanishing viscosity approximation. The elliptic equation is given on the edges and coupled with Kirchhoff-type conditions at the transition vertices. We prove that there exists exactly
Camilli, Fabio   +2 more
core   +2 more sources

Multiplicity and Concentration of Solutions for Kirchhoff Equations with Magnetic Field

open access: yesAdvanced Nonlinear Studies, 2021
In this paper, we study the following nonlinear magnetic Kirchhoff equation:
Ji Chao, Rădulescu Vicenţiu D.
doaj   +1 more source

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