The purpose of the present paper is to introduce the concepts of upper and lower*-
continuous multifunctions. Several characterizations of upper and lower*-continuous …

A NOTE ON STRONG β-I-SETS AND STRONGLY β-I-CONTINUOUS FUNCTIONS Page 1 Acta
Math. Hungar. 108 (1–2) (2005), 87–94. A NOTE ON STRONG β-I-SETS AND STRONGLY …

This paper is concerned with the concepts of upper and lower almost α-*-continuous
multifunctions. Moreover, several characterizations of upper and lower almost α …

An ideal topological space is a triplet (X, τ, ℑ), where X is a nonempty set, τ is a topology on
X, and ℑ is an ideal of subsets of X. In this paper, we introduce L∗‐perfect, R∗‐perfect, and …

1 Introduction Page 1 Faculty of Sciences and Mathematics, University of Niš, Serbia Available
at: http://www.pmf.ni.ac.rs/filomat Filomat 24:4 (2010), 87–94 DOI: 10.2298/FIL1004087E …

This paper is concerned with the concepts of upper and lower β\(⋆\)-continuous
multifunctions. In particular, several characterizations of upper and lower β\(⋆\)-continuous …

: اﻟﺧﻼﺻﺔ Page 1 The Arabian Journal for Science and Engineering, Volume 34, Number 1A
January 2009 165 *Corresponding Author E-mail: eekici@comu.edu.tr **E-mail: t.noiri@nifty.com …

This article deals with the concepts of upper and lower α (⋆)-continuous multifunctions.
Some characterizations of upper and lower α (⋆)-continuous multifunctions are investigated …

ON A∗ -SETS, cI-SETS, c∗ -SETS AND DECOMPOSITIONS OF CONTINUITY IN IDEAL
TOPOLOGICAL SPACES 1. Introduction and preliminarie Page 1 ANALELE STIINTIFICE ALE …

First, we introduce the notion of f I-sets and investigate their properties in ideal topological
spaces. Then, we also introduce the notions of RI C-continuous, f I-continuous and contra …