Abstract: In
this paper we study the role played by the indefinite weight function and
the parameter l on the existence of
positive solutions to the problem
where
W is a smooth bounded
domain in l is real parameter and changes
sign.
We
prove that in the case for the problem has a positive
solution.
Keywords and phrases: the p-Laplacian, indefinite weight function, variational method, Neumann boundary value problem.
