Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
842096 | Nonlinear Analysis: Theory, Methods & Applications | 2010 | 12 Pages |
Abstract
We deal with the existence of positive solutions uu decaying to zero at infinity, for a class of equations of Lane–Emden–Fowler type involving a gradient term. One of the main points is that the differential equation contains a semilinear term σ(u)σ(u) where σ:(0,∞)→(0,∞)σ:(0,∞)→(0,∞) is a smooth function which can be both unbounded at infinity and singular at zero. Our technique explores symmetry arguments as well as lower and upper solutions.
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Authors
J.V. Goncalves, F.K. Silva,