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Ordinal Invariants in Topology

V. Kannan

出版	American Mathematical Soc., 1981
主題	Mathematics / GeneralMathematics / Topology
ISBN	08218224549780821822456
URL	http://books.google.com.hk/books?id=OR_UCQAAQBAJ&hl=&source=gbs_api
EBook	SAMPLE

註釋

In this work we show that almost all useful ordinal invariants in topology studied until now (such as derived length of scattered spaces, sequential order of sequential spaces, etc.) can be brought under the single heading of what we call the order of a map. This helps us to perceive some close connections among apparently unrelated corners of general topology, to view the known concepts from different angles and to obtain a lot of information about the particular cases.