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Proceedings of the American Mathematical Society
Article . 1983 . Peer-reviewed
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Proceedings of the American Mathematical Society
Article . 1983 . Peer-reviewed
Data sources: Crossref
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On a Singular Elliptic Equation

On a singular elliptic equation
Authors: Wei Ming Ni;

On a Singular Elliptic Equation

Abstract

In this paper, we study the singular elliptic equation L u + K ( x ) u p = 0 Lu + K(x){u^p} = 0 , where L L is a uniformly elliptic operator of divergence form, p > 1 p > 1 and K ( x ) K(x) has a singularity at the origin. We prove that this equation does not possess any positive (local) solution in any punctured neighborhood of the origin if there exist two constants C 1 {C_1} , C 2 {C_2} such that C 1 | x | σ ⩾ K ( x ) ⩾ C 2 | x | σ {C_1}|x{|^\sigma } \geqslant K(x) \geqslant {C_2}|x{|^\sigma } near the origin for some σ ⩽ − 2 \sigma \leqslant - 2 (with no other condition on the gradient of K K ). In fact, an integral condition is derived.

Keywords

uniformly elliptic operator of divergence form, non-existence of positive solutions, Nonlinear elliptic equations, singularity at the origin, Local existence and uniqueness theorems (PDE)

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
12
Average
Top 10%
Average
bronze
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