Existence of five nonzero solutions with
exact sign for a $p$-Laplacian equation
-
1.
National Technical University, Department of Mathematics, Zografou Campus, Athens, 15780
-
2.
Babeş-Bolyai University, Department of Economics, 400591 Cluj-Napoca
-
3.
Department of Mathematics, National Technical University, Zografou Campus, Athens 15780