on fuzzy upper and lower contra-continuous multifunctions

Authors

mohsen alimohammady

e. ekici

s. jafari

m. roohi

abstract

this paper is devoted to the concepts of fuzzy upper and fuzzy lower contra-continuous multifunctions and also some characterizations of them are considered.

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Journal title:
iranian journal of fuzzy systems

Publisher: university of sistan and baluchestan

ISSN 1735-0654

volume 8

issue 3 2011

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