Some properties of eigenfunctions of linear pencils and applications to mixed type operator-differential equations
Volume 27 / 1992
Banach Center Publications 27 (1992), 373-382
DOI: 10.4064/-27-2-373-382
Abstract
In the first part of the paper we study some properties of eigenelements of linear selfadjoint pencils Lu = λBu. In the second part we apply these results to the investigation of some boundary value problems for mixed type second order operator-differential equations.
