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This paper deals with the concepts of upper and lower (τ1, τ2)-precontinuous multifunctions. Some characterizations of upper and lower (τ1, τ2)-precontinuous multifunctions are investigated. The relationships between upper and lower (τ1, τ2)precontinuous multifunctions and the other types of continuity are discussed.

On upper and lower ( τ1,τ2 )-precontinuous multifunctions