Wijsman lacunary I-invariant convergence of sequences of sets

Abstract

In this paper, we study the concepts of Wijsman lacunary I-invariant convergence (.1.), Wijsman lacu- nary I*-invariant convergence (.2.), Wijsman p-strongly lacunary invariant convergence (.3.) of sequences of sets and investigate the relationships among Wijsman lacunary invariant convergence, (.3.), (.1.), (.2.). Also, we introduce the concepts of (.1.)-Cauchy sequence (.2.)-Cauchy sequence of sets.