PageHeader : Funkcialaj Ekvacioj, 17 (1974), 73-83 Title : Surjectivity of Operators Involving Linear Title : Noninvertible Part and Nonlinear Title : Compact Perturbation AuthorInfo : By Svatopluk FU?IK AuthorInfo : (Charles University, Czechoslovakia) section : 1. Introduction. section : 2. Main result. section : 3. Application to boundary value problems. section : 4. Remarks. section : References