Nguyen Thanh Chung
Abstract:
In this article, we consider degenerate and singular
elliptic systems of the form
where
is a bounded domain in
,
,
with smooth boundary
;
,
,
and are allowed to have "essential" zeroes;
;
the weight functions
,
may be sign-changing; and
.
Using variational techniques, a variant of the
Caffarelli - Kohn - Nirenberg inequality, and a variational
principle by Clark [9], we prove the rxistence of
infinitely many solutions in a weighted Sobolev space.
Submitted May 14, 2010. Published February 18, 2011.
Math Subject Classifications: 35J65, 35J20.
Key Words: Degenerate and singular Elliptic system; weight function;
concave nonlinearity; infinitely many solutions.
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Nguyen Thanh Chung Department of Mathematics and Informatics Quang Binh University, 312 Ly Thuong Kiet Dong Hoi, Quang Binh, Vietnam email: ntchung82@yahoo.com |
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