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摘要
In this paper we deal with the asymptotic problem (a(t)Phi(x'))' b(t)F(x) = 0, lim(t ->infinity) x'(t) = 0, x(t) > 0 for large t. (*) Motivated by searching for positive radially symmetric solutions in a fixed exterior domain in R(N) for partial differential equations involving the curvature operator, the global positiveness and uniqueness of (*) is also considered. Several examples illustrate the discrepancies between the bounded and unbounded Phi. The results for the curvature operator and the classical Phi-Laplacian are compared, too.
- 出版日期2009
