Qihu Zhang
Zhengzhou University of Light Industry
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Publication
Featured researches published by Qihu Zhang.
Nonlinear Analysis-theory Methods & Applications | 2003
Xianling Fan; Qihu Zhang
This paper presents several sufficient conditions for the existence of solutions for the Dirichlet problem of p(x)-Laplacian {-div(|∇u|p(x)-2∇u) = f(x,u), x ∈ Ω, u = 0, x ∈ ∂Ω. Especially, an existence criterion for infinite many pairs of solutions for the problem is obtained. The discussion is based on the theory of the spaces Lp(x)(Ω) and W01, p(x)(Ω).
Boundary Value Problems | 2013
Rong Dong; Qihu Zhang
This paper investigates the existence of solutions for a weighted p(t)-Laplacian impulsive integro-differential system with multi-point and integral mixed boundary value problems via Leray-Schauder’s degree; sufficient conditions for the existence of solutions are given. Moreover, we get the existence of nonnegative solutions.MSC:34B37.
Boundary Value Problems | 2013
Guizhen Zhi; Yunrui Guo; Yan Wang; Qihu Zhang
This paper explores the existence of solutions for a class of p(t)-Laplacian differential systems with multipoint and integral boundary value conditions via Leray-Schauder’s degree. Moreover, the existence of nonnegative solutions is discussed.MSC:34B10.
Journal of Applied Mathematics | 2011
Guizhen Zhi; Yunrui Guo; Yan Wang; Qihu Zhang
This paper investigates the existence of solutions for a class of variable exponent integrodifferential system with multipoint and integral boundary value condition in half line. When the nonlinearity term 𝑓 satisfies sub-(𝑝−−1) growth condition or general growth condition, we give the existence of solutions and nonnegative solutions via Leray-Schauder degree at nonresonance, respectively. Moreover, the existence of solutions for the problem at resonance has been discussed.
Boundary Value Problems | 2011
Li Yin; Yunrui Guo; Guizhen Zhi; Qihu Zhang
This paper investigates the existence of solutions for weighted p(r)-Laplacian impulsive system mixed type boundary value problems. The proof of our main result is based upon Gaines and Mawhins coincidence degree theory. Moreover, we obtain the existence of nonnegative solutions.
Abstract and Applied Analysis | 2010
Li Yin; Yunrui Guo; Jing Yang; Bibo Lu; Qihu Zhang
This paper investigates the following 𝑝(𝑥)-Laplacian equations with exponential nonlinearities: −Δ𝑝(𝑥)𝑢
Journal of Mathematical Analysis and Applications | 2005
Xianling Fan; Qihu Zhang; Dun Zhao
Nonlinear Analysis-theory Methods & Applications | 2007
Qihu Zhang
Journal of Mathematical Analysis and Applications | 2007
Qihu Zhang
Journal of Mathematical Analysis and Applications | 2007
Qihu Zhang