z-PERFECTLY CONTINUOUS FUNCTIONS AND THEIR FUNCTION SPACES
D. SINGH 1 AND MANOJ KUMAR RANA 2 1. Department of Mathematics, Sri Aurobindo College, University of Delhi, New Delhi 110017, INDIA, e-mail:dstopology@rediffmail.com
2. Department of Mathematics, University of Delhi, Delhi – 110007, INDIA
A new class of functions called z-perfectly continuous functions is introduced,
which properly includes the class of pseudo perfectly continuous functions [24] but turns out to be independent of continuity. Besides the study of the basic properties of z-perfectly continuous functions and the interplay with topological properties, sufficient conditions are outlined for their function spaces to be closed, respectively compact, in the topology of pointwise convergence.