数学物理学报 ›› 2000, Vol. 20 ›› Issue (4): 461-467.
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(南开大学数学所 天津 300071)
(浙江大学应用数学系 杭州玉泉 310027)
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(Nankai Institute of Mathematics, Nankai University, Tianjin 300071, China)
(Department of Mathematics, Zhejiang University, Hangzhou 310027, Zhejiang, China)
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摘要:
该文考虑
-Δu = g(x)|u|q-2u+λ|u|p-2u+f(x), x∈Ω,
u|Ω=0, g,f∈L∞(Ω), 1<q<2<p≤2N/(N-2),
给出了g(x)是变号函数、负值函数时,方程的可解性、正解的存在性以及多解性.
关键词: 变号函数, 次线性项, 超线性项, 上下解方法, 变分方法.
Abstract:
This paper deals with a class of semilinear elliptic Dirichlet boundary value problems with the sign-changing or negative coefficient funtion for concave nonlinearities of the form |u|q-2u,1<q<2, to establish some existence and multiplicity results.
Key words: Sign-changing function, sublinear terms, superlinear terms, barrier method, variational method.
中图分类号:
 
孙义静吴绍平. 一类零点为次线性的椭圆方程的可解性[J]. 数学物理学报, 2000, 20(4): 461-467.
Sun Yijing Wu Shaoping. On a Nonlinear Elliptic Equation with Sublinear Term at Origin[J]. Acta mathematica scientia,Series A, 2000, 20(4): 461-467.
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http://actams.apm.ac.cn/sxwlxbA/CN/Y2000/V20/I4/461
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