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Quasicontinuity and related properties of functions and multivalued maps. (English) Zbl 0843.54018
The notions of quasicontinuous, almost quasicontinuous and almost continuous multifunctions are characterized by analogous properties of some real functions. In the last part a decomposition theorem for upper and lower quasicontinuity is proved.
Reviewer: V.Popa (Bacau)
MSC:
54C08 Weak and generalized continuity
54C60 Set-valued maps in general topology
26E25 Set-valued functions
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