刊名:Journal of Mathematical Analysis and Applications
出版年:2016
出版时间:15 February 2016
年:2016
卷:434
期:2
页码:1597-1611
全文大小:417 K
文摘
We study positive radial solutions to singular boundary value problems of the form:
where 836979aef09b9fed0c00d5775bf" title="Click to view the MathML source">Δu:=div(∇u) is the Laplacian operator of u , Ω={x∈RN‖x|>r0>0,N>2}, λ>0, K∈C([r0,∞),(0,∞)) is such that for s≫1 for some , and is the outward normal derivative of u on |x|=r0. Here, 83f" title="Click to view the MathML source">f∈C1([0,∞),R) is such that as s→∞, and . We analyse the cases when (a ) f(0)>0 and (b ) 3c75896d5c7fa450f02def81d17" title="Click to view the MathML source">f(0)<0. We discuss existence, non-existence, multiplicity and uniqueness results. We prove our existence results by the method of sub and supersolutions.
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