Connectedness classes
作者:
G. Castellini,
期刊:
Quaestiones Mathematicae
(Taylor Available online 2000)
卷期:
Volume 23,
issue 3
页码: 313-334
ISSN:1607-3606
年代: 2000
DOI:10.2989/16073600009485980
出版商: Taylor & Francis Group
关键词: CLOSURE OPERATOR;CONNECTEDNESS;GALOIS CONNECTION;TERMINAL OBJECT
数据来源: Taylor
摘要:
LetXbe an (E,M)-category for sinks. A recently introduced notion of connectedness with respect to a closure operatorConXand to a class ofX-monomorphismsNis further analyzed. The notion ofN-connectedness hull of a class ofX-objects is introduced and a characterization of it is presented under the assumption ofNbeing closed under the formation of pullbacks. Moreover, a characterization of the related notion ofN-connectedness class is presented under the assumption thatXcontains a terminal object. Some examples are provided.
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