MATEMATIČKI VESNIK
МАТЕМАТИЧКИ ВЕСНИК



MATEMATIČKI VESNIK
Notes on almost open mappings
Xun Ge

Abstract

In this paper, we give some characterizations of almost open mappings defined on first countable spaces, which corrects some errors for almost open mappings.

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Keywords: Almost open mapping, almost weak-open mapping, almost $sn$-open mapping, 1-sequence-covering mapping.

MSC: 54C05, 54C10

Pages:  181--186     

Volume  60 ,  Issue  3 ,  2008