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2005年05月12日

【期刊论文】Optimal control of some semilinear elliptic equations with critical exponent

邓引斌, Yinbin Deng, Gengsheng Wang*

Nonlinear Analysis 36(1999)915-922,-0001,():

-1年11月30日

摘要

Minimal positive solution, Optimal control

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2005年05月12日

【期刊论文】Existence and Bifurcation of the Positive olutions for a Semilinear Equation with Critical Exponent

邓引斌, Yinbin Deng*, Yi Li†

journal of differential equations 130, 179 200 (1996),-0001,():

-1年11月30日

摘要

In this paper, we consider the semilinear elliptic equation -Δu+u=u p-1+uf (x), u>0, u ∈H1(RN), N>2. (*)p For p=2N|(N-2), we show that there exists a positive constant p*>0 such that (*)p possesses at least one olution if p ∈ (0, p*) and no solutions if p>p*. Furthermore, (*)p possesses a unique solution when p=p*, and at least two solutions when p ∈ (0, p*) and 2<N<6. For N≥6, under some monotonicity onditions on f ((1.6)) we show that there exist two constants 0<p**≤ **<p* such that problem (*)p possesses a unique solution for p ∈ (0, p*), and at least two solutions if p ∈ (p**, p*).

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2005年05月12日

【期刊论文】Separation Property of Solutions for a Semilinear Elliptic Equation

邓引斌, Yi Liu, Yi Li, Yinbin Deng

Journal of Differential Equations 163, 381 406 (2000),-0001,():

-1年11月30日

摘要

In this paper, we study the following elliptic problem{Δu+k(χ)up=0 u>0 in RN in RN (V)where K(x) is a given function in C:(Rn"0) for some fixed : α∈ (0, 1), p>1 is a constant. Some existence, monotonicity and asymptotic expansion at infinity of solutions of (*) are discussed.

positive solutions, monotonicity, asymptotic expansion, elliptic equations.,

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2005年05月12日

【期刊论文】On the stability of the positive radial steady states for a semilinear Cauchy problem

邓引斌, Yinbin Denga, *, Yi Lib, Yi Liuc

Nonlinear Analysis 54(2003)291-318,-0001,():

-1年11月30日

摘要

This paper is contributed to the Cauchy problem{∂u ∂t =Δu+K({χ})up in Rn×(O,T),u(χ,0)=φ(χ) in Rn with initial function φ≠0. The stability and instability of the positive radial steady states, which are positive solutions ofΔu+K({χ})up=0, has been discussed with di3erent assumption on K(|x|) ‖‡‖λ= sup│(1+│+χ│) ‡(χ)│, where φ and ‡ are some nonnegative continuous functions in Rn, and λ is a real number.

Stability, Cauchy problem, Asymptotic stability

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2005年05月12日

【期刊论文】On the Existence of Multiple Positive Solutions for a Semilinear Problem in Exterior Domains1

邓引斌, Yinbin Deng, Yi Li

Journal of Differential Equations 181, 197-229 (2002),-0001,():

-1年11月30日

摘要

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  • 邓引斌 邀请

    华中师范大学,湖北

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