Talk:Adjunction space
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[edit]The first example probably was an attempt to show how all CW-complexes are built up, but the description was too vague so I replaced it with a specific example of a CW-complex which is easier to describe for now. - Gauge 05:42, 2 Jun 2005 (UTC)
disjoint union
[edit]At the risk of being fussy, I suggest that the symbol for disjoint union operation be changed to or from the present to be consistent with the article Disjoint union. - Subh83 (talk | contribs) 19:51, 26 April 2011 (UTC)
- Never mind that. The present notation is the standard for topological spaces. - Subh83 (talk | contribs) 19:55, 26 April 2011 (UTC)
- Well, I studied quite a bit of topology (years ago) and the symbol confused me - it looks like a damaged upper-case with Roman lettering type serifs or . Perhaps we could link the symbol to the article Disjoint union? yoyo (talk) 08:34, 16 November 2015 (UTC)
Some history, please
[edit]We need more information in the article, for example:
- What's the history of the term "adjunction space"?
- Who first used it?
- Who first defined it?
- Why use "adjunction"?
- And does it relate to a natural notion of "adjunct" elements in the space?
- If so, how is the adjunct element defined?
yoyo (talk) 10:14, 16 November 2015 (UTC)
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