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It is not stated as requirement that two consecutive morphisms must vanish in triangles
(see
Definition).
Rather it is stated as property
(see section
Properties),
but how does this follow from the axioms???!
under the section Introduction, you write "..was introduced in his thesis by Verdier, based on some ideas of Grothendieck." I would prefer "the ideas of grothendieck" instead. marhahs,17sep2006
Well, OK. It's not a big issue.
Charles Matthews 14:04, 17 September 2006 (UTC)reply
i mentioned that because it was more correct andnot only a matter of taste. i change it. marhahs,19sep2006
Homotopy category
I would create an own site for the homotopy category. Seems enough material and now the information is partly in
chain homotopy, partly in this article, and also in
derived category. OK?
Jakob.scholbach 04:25, 13 March 2007 (UTC)reply
Well, for one thing the reference to homotopy category in this article looks incorrect because the suspension functor is not an auto-equivalence in this category; shouldn't it point to
stable homotopy theory (of spectra, possibly) instead? -
Saibod 19:17, 31 March 2007 (UTC)reply
Not a big deal, but the commutative diagram explaining TR3 has two g's, the second of which should be an h. I am
new here and don't know how to fix this.
Ctourneur (
talk) 01:52, 9 February 2008 (UTC)reply