Kragujevac J. Math. 28 - 13 Kragujevac J. Math. 28 (2005) 173-183.

ON THE COMPACTNESS AND CONDENSING OF NONLINEAR SUPERPOSITION OPERATORS

F. Dedagic and N. Okicic

Faculty of Science, Univerzitetska 4, 75000 Tuzla, Bosnia and Hercegovina
(e-mails: fehim.dedagic@untz.ba,  nermin.okicic@untz.ba)

Abstract. In the present paper we give some propositions about conditions for compactness and condensation of the nonlinear superposition operator (1) in lp,s spaces.