CONTINUOUS SPECTRUM FOR SOME CLASSES OF (p, 2)-EQUATIONS WITH LINEAR OR SUBLINEAR GROWTH.

We are concerned with two classes of nonlinear eigenvalue problems involving equations driven by the sum of the p-Laplace (p > 2) and Laplace operators. The main results of this paper establish the existence of a continuous spectrum consisting in an unbounded interval, which is described by using the principal eigenvalue of the Laplace operator. [ABSTRACT FROM AUTHOR]