Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Lingju Kong"'
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2024, Iss 12, Pp 1-18 (2024)
The authors investigate the multiplicity of solutions to a quasilinear periodic boundary value problem with impulsive effects. They use variational methods and some critical points theorems for smooth functionals, due to Ricceri, that are defined on
Externí odkaz:
https://doaj.org/article/107f4545ed1548ffa062f75d7a30bd1f
Publikováno v:
Electronic Journal of Differential Equations, Vol 2023, Iss 46,, Pp 1-15 (2023)
Externí odkaz:
https://doaj.org/article/8a2b546827be4a7987be06a80f6997f2
Publikováno v:
Mathematica Bohemica, Vol 147, Iss 1, Pp 95-112 (2022)
This paper presents several sufficient conditions for the existence of at least one classical solution to impulsive fractional differential equations with a $p$-Laplacian and Dirichlet boundary conditions. Our technical approach is based on variation
Externí odkaz:
https://doaj.org/article/a1c22cbefa4b4e6da2d95ad2450dd8f4
Autor:
Lingju Kong, Min Wang
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2021, Iss 60, Pp 1-9 (2021)
In this article, we investigate the existence of positive solutions of a boundary value problem for a system of fractional differential equations. The resilience of a fractional compartment system is also studied to demonstrate the application of the
Externí odkaz:
https://doaj.org/article/e05e5d2c55ad445d827f41929b3a0bff
Autor:
Lingju Kong, Min Wang
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2020, Iss 47, Pp 1-13 (2020)
In this paper, a second order discrete boundary value problem with a pair of mixed periodic boundary conditions is considered. Sufficient conditions on the existence of multiple solutions are obtained by using the critical point theory. Necessary con
Externí odkaz:
https://doaj.org/article/b354a4ca00b44cc8ad48798b89d04199
Autor:
Lingju Kong
Publikováno v:
Opuscula Mathematica, Vol 36, Iss 2, Pp 253-264 (2016)
We study the multiplicity of weak solutions to the following fourth order nonlinear elliptic problem with a \(p(x)\)-biharmonic operator \[\begin{cases}\Delta^2_{p(x)}u+a(x)|u|^{p(x)-2}u=\lambda f(x,u)\quad\text{ in }\Omega,\\ u=\Delta u=0\quad\text{
Externí odkaz:
https://doaj.org/article/a95e0ec7b6d0451ca347f637370e2b51
Publikováno v:
Electronic Journal of Differential Equations, Vol 2015, Iss 204,, Pp 1-17 (2015)
Based on variational methods and critical point theory, we study the existence of nontrivial periodic solutions to a class of second-order impulsive Hamiltonian systems. A unique feature of the approach used here is that we use a combination of t
Externí odkaz:
https://doaj.org/article/70f229f766d24f2680d2e588eca17a86
Publikováno v:
Electronic Journal of Differential Equations, Vol 2015, Iss 30,, Pp 1-11 (2015)
We study the boundary value system for the two-dimensional quasilinear biharmonic equations $$\displaylines{ \Delta (|\Delta u_i|^{p-2}\Delta u_i)=\lambda_iw_i(x)f_i(u_1,\ldots,u_m),\quad x\in B_1,\cr u_i=\Delta u_i=0,\quad x\in\partial B_1,\quad
Externí odkaz:
https://doaj.org/article/47bd2f81b045496185f2bda897cb3915
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2014, Iss 3, Pp 1-8 (2014)
We study a higher order singular functional difference equation on $\mathbb{Z}$. Sufficient conditions are obtained for the existence of at least one positive periodic solution of the equation. Our proof utilizes the nonlinear alternative of Leray-Sc
Externí odkaz:
https://doaj.org/article/f9fa4ee77fd34106a0d0c600d8c4ab6f
Publikováno v:
Opuscula Mathematica, Vol 34, Iss 2, Pp 363-373 (2014)
The authors study a type of second order nonlinear telegraph equation. The existence and uniqueness of positive doubly periodic solutions are discussed. The parametric dependence of the solutions is also investigated. Two examples are given as applic
Externí odkaz:
https://doaj.org/article/99de7a541f2c4af18126a43e531940bc