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Degenerate anisotropic differential operators and applications
(Springer Nature, 2011-01-01)
The boundary value problems for degenerate anisotropic differential operator equations with variable coefficients are studied. Several conditions for the separability and Fredholmness in Banach-valued L-p spaces are given. ...
A unified treatment using critical point methods of the existence of multiple solutions for superlinear and sublinear neumann problems
(American Institute of Mathematical Sciences (AIMS), 2011-05-01)
In this paper we present a framework which permits the unified treatment of the existence of multiple solutions for superlinear and sublinear Neumann problems. Using critical point theory, truncation techniques, the method ...