The exact asymptotic behaviour of the unique solution to a singular nonlinear Dirichlet problem
The exact asymptotic behaviour of the unique solution to a singular nonlinear Dirichlet problem
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奇异非线性狄利克雷问题唯一解的精确渐近行为
DOI:
10.1016/j.jmaa.2006.07.052
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发表时间:
2007-05
期刊:
影响因子:
--
通讯作者:
俞建宁
中科院分区:
文献类型:
--
作者:
张志军;俞建宁
By Karamata regular varying theory, a perturbed argument and constructing comparison functions, we show the exact asymptotic behaviour of the unique solution u∈C2(Ω)∩C(Ω¯) near the boundary to a singular Dirichlet problem −Δu=b(x)g(u)+λf(u), u>0, x∈Ω, u|∂Ω=0, which is independent on λf(u), and we also show the existence and uniqueness of solutions to the problem, where Ω is a bounded domain with smooth boundary in RN, λ>0, g∈C1((0,∞),(0,∞)) and there exists γ>1 such that [Formula: see text] , ∀ξ>0, f∈Clocα([0,∞),[0,∞)), the function f(s)s+s0is decreasing on (0,∞) for some s0>0, and b is nonnegative nontrivial on Ω, which may be vanishing on the boundary.
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DOI:
10.1007/978-0-387-49319-0
发表时间:
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期刊:
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影响因子:
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作者:
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DOI:
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2000-04
期刊:
--
影响因子:
--
作者:
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