Results 1 to 10 of about 189,248 (240)

A class of fourth-order parabolic equation with logarithmic nonlinearity [PDF]

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we study a class of fourth-order parabolic equation with the logarithmic nonlinearity. By using the potential well method, we obtain the existence of the unique global weak solution. In addition, we also obtain results of decay and blow-up
Pingping Li, Changchun Liu
doaj   +3 more sources

Fractional p(·)-Kirchhoff Type Problems Involving Variable Exponent Logarithmic Nonlinearity

open access: yesFractal and Fractional, 2022
In this paper, we investigate a fractional p(·)-Kirchhoff type problem involving variable exponent logarithmic nonlinearity. With the help of the Nehari manifold approach, the existence and multiplicity of nontrivial weak solutions for the above problem ...
Jiabin Zuo   +2 more
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On a viscoelastic heat equation with logarithmic nonlinearity [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
This work deals with the following viscoelastic heat equations with logarithmic nonlinearity \begin{align*} u_t-\Delta u+\int_{0}^{t}g(t-s)\Delta u(s)ds=\vert u\vert^{p-2}u\ln\vert u\vert.
Nguyen Van Y, Nhan Le, Le Xuan Truong
doaj   +2 more sources

Properties of Weak Solutions for a Pseudoparabolic Equation with Logarithmic Nonlinearity of Variable Exponents

open access: yesJournal of Mathematics, 2023
In this paper, a new pseudoparabolic equation with logarithmic nonlinearity of variable exponents is investigated. By using the energy functional and the classical potential well, we obtain the global existence and blow-up results of weak solutions with ...
Rongting Pan, Yunzhu Gao, Qiu Meng
doaj   +2 more sources

Ground states for fractional nonlocal equations with logarithmic nonlinearity [PDF]

open access: yesOpuscula Mathematica, 2022
In this paper, we study on the fractional nonlocal equation with the logarithmic nonlinearity formed by \[\begin{cases}\mathcal{L}_{K}u(x)+u\log|u|+|u|^{q-2}u=0, & x\in\Omega,\\ u=0, & x\in\mathbb{R}^{n}\setminus\Omega,\end{cases}\] where \(2\lt ...
Lifeng Guo, Yan Sun, Guannan Shi
doaj   +3 more sources

Decay estimate in a viscoelastic plate equation with past history, nonlinear damping, and logarithmic nonlinearity

open access: yesBoundary Value Problems, 2022
In this article, we consider a viscoelastic plate equation with past history, nonlinear damping, and logarithmic nonlinearity. We prove explicit and general decay rate results of the solution to the viscoelastic plate equation with past history.
Bhargav Kumar Kakumani   +1 more
doaj   +2 more sources

Logarithmic estimates for mean-field models in dimension two and the Schrödinger–Poisson system

open access: yesComptes Rendus. Mathématique, 2022
In dimension two, we investigate a free energy and the ground state energy of the Schrödinger–Poisson system coupled with a logarithmic nonlinearity in terms of underlying functional inequalities which take into account the scaling invariances of the ...
Dolbeault, Jean   +2 more
doaj   +1 more source

Oscillatory bifurcation problems for ODEs with logarithmic nonlinearity

open access: yesOpen Mathematics, 2021
We study the global structure of the oscillatory perturbed bifurcation problem which comes from the stationary logarithmic Schrödinger equation −u″(t)=λ(log(1+u(t))+sinu(t)),u(t)>0,t∈I≔(−1,1),u(±1)=0,-{u}^{^{\prime\prime} }\left(t)=\lambda (\log \left(1 ...
Shibata Tetsutaro
doaj   +1 more source

Global solutions and exponential decay to a Klein–Gordon equation of Kirchhoff-Carrier type with strong damping and nonlinear logarithmic source term

open access: yesPartial Differential Equations in Applied Mathematics, 2021
This paper is concerned with the existence and exponential stability of the global solution to a Klein–Gordon equation of Kirchhoff-Carrier type with strong damping −Δutand logarithmic source term uln|u|R2.
S.M.S. Cordeiro   +3 more
doaj   +1 more source

Global existence and blow up of solution for semi-linear hyperbolic equation with the product of logarithmic and power-type nonlinearity [PDF]

open access: yesOpuscula Mathematica, 2020
In this paper we consider the semilinear wave equation with the multiplication of logarithmic and polynomial nonlinearities. We establish the global existence and finite time blow up of solutions at three different energy levels (\(E(0)\lt d\), \(E(0)=d\)
Wei Lian, Md Salik Ahmed, Runzhang Xu
doaj   +1 more source

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