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Aug 19, 2011 at 15:54 comment added Dylan Wilson @Fernando: I was thinking about this... I know there are no Hopf maps in things like $D^{perf}(X)$ when $X$ is a scheme, but I wasn't sure if this still held for stacks
Aug 19, 2011 at 15:52 vote accept Dylan Wilson
Aug 19, 2011 at 15:52 vote accept Dylan Wilson
Aug 19, 2011 at 15:52
Aug 19, 2011 at 13:05 comment added Tyler Lawson (You don't need to pick a field, the moduli of formal groups makes sense over any base.)
Aug 19, 2011 at 12:51 answer added Tyler Lawson timeline score: 22
Aug 19, 2011 at 10:10 answer added Jacob Lurie timeline score: 24
Aug 19, 2011 at 9:31 answer added Neil Strickland timeline score: 24
Aug 19, 2011 at 9:16 comment added Fernando Muro The Hopf map is an obstruction for the existence of an algebraic model for the stable homotopy category
Aug 19, 2011 at 8:18 comment added Eric Peterson Section 2.4.2 of Morava's Complex cobordism and algebraic topology says something about this and provides references for sub-questions. Here's an arXiv link: arxiv.org/abs/0707.3216 .
Aug 19, 2011 at 7:13 comment added Dylan Wilson Uh oh... I'm realizing that this $M_{FG}$ doesn't make much sense unless I pick a field... should I rephrase the question by localizing the stable homotopy category at a prime and picking a field of characteristic $p$? Or am I being paranoid?
Aug 19, 2011 at 7:09 history asked Dylan Wilson CC BY-SA 3.0