In this article the concepts of δ-open M-sets, λ-open M-sets, λ-continuous M-set functions, quasi λ-open M-set functions and λ-irresolute M-set functions are introduced and studied. Also, their properties and characterizations are discussed.

Revathi G K

Mathematics

School of Advanced Sciences

Chennai Campus

B. Amudhambigai

K.A. Sunmathi

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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Journal	Italian Journal of Pure and Applied Mathematics
Publisher	Forum-Editrice Universitaria Udinese SRL
ISSN	11268042