The abstract of the talk (see below) may be downloaded in one of the following formats:
This lecture deals with some abstract concepts of set-convergences.
One of our principal interests is to establish connections between
these convergences and classical ones, e.g. Vietoris or Hausdorff
convergence.
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2000 \emph{Mathematics Subject Classification.} 54B20, 54A20.\\[5pt]
\emph{Key words and phrases.} Set-convergences, Vietoris convergence, Hausdorff
convergence.