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UPPER AND LOWER (τ, M)-J-CONTINUOUS MULTIFUNCTIONS


TAKASHI NOIRI 1, VALERIU POPA 2
1. 2949-1 Shiokita-cho, Hinagu, Yatsushiro-shi, Kumamoto-ken - 869-5142, JAPAN e-mail: t.noiri@nifty.com
2. “Vasile Alecsandri” University of Bacău 157 Calea Mărășești, Bacău 600115, ROMANIA e-mail : vpopa@ub.ro

Issue:

SSRSMI, Number 1, Volume XXXII

Section:

Volume 32, Number 1

Abstract:

We introduce the notions of upper/lower (τ, m)-J-continuous multifunctions and obtain many characterizations of such multifunctions. The notion is obtained from a multifunc-tion F :(X, τ ) → (Y, σ, J) and several generalizations of J-open sets on the ideal topological space (Y, σ, J). If F is single valued, m = σ and J = {∅}, then the above multifunction is a (τ, m)-continuous function.

Keywords:

m-structure, m-space, multifunction, , m)-J-continuous.

Code [ID]:

SSRSMI202201V32S01A0004 [0005519]

Note:

Full paper:

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