On upper and lower δ-precontinuous multi
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Jin Han Park; Bu Young Lee; Mi Jung Son
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Article
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2004
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Elsevier Science
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English
⚖ 122 KB
In this paper we introduce and study d-precontinuous multifunctions as a generalization of precontinuous multifunctions due to Popa [Problemy Mat. 10 (1988) 9]. Some characterizations and several properties concerning upper (lower) d-precontinuous multifunctions are obtained. The relationships betwe