Beceren Y.Noiri T.2020-03-262020-03-2620030420-1213https://hdl.handle.net/20.500.12395/18715The purpose of this paper is to introduce new two classes of functions called ?-preirresolute functions and ?-preirrsolute functions in topological spaces. Some properties and several characterizations of these types of functions are obtained. Also, we investigate the relationship between these clasess of functions and other classes of non-continuous functions. © 2003 Warsaw University. All rights reserved.eninfo:eu-repo/semantics/openAccessPreopen set?-open set?-preirresoluteness?-open set?-preirrsolutenessArticle361207212Q2