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Questions
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What is the universal deformation of the formal additive group $\widehat{\mathbb{G}}_a$ over $\mathbb{F}_p$?

nov 27 at 19:54 Eric Peterson 2,934●1●14●28

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On the natural (bigraded) homotopy groups of a simplicial object in a model category

oct 22 at 18:21 Tyler Lawson 18.7k●2●44●90

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relationships between properties of model categories

sep 13 at 11:54 Aaron Mazel-Gee 3,308●6●21

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If $A\in \mbox{Rings}\subset E_\infty\mbox{-rings}$, what is the equivalence between objects of $\mathcal{D}(\mbox{Mod}_A)$ and $A$-module spectra?

jan 30 12 at 20:33 Justin Noel 574●2●7

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Is there a unified reason that there are an infinite number of geodesics between nonconjugate points on a compact manifold?

jan 22 12 at 12:18 Benoît Kloeckner 5,490●18●29

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reference request: John Baez on (-1)- and (-2)-categories and properties+structure+stuff

nov 8 11 at 10:49 Gonçalo Marques 286●2●5●8

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How can I see that $H\mathbb{Z}$ doesn’t admit a Bousfield complement?

jul 29 11 at 10:53 Neil Strickland 13.3k●1●28●66

 
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(Sh,Sh-map) represents the category of sheaves on a stack.

jul 29 11 at 10:37 S. Carnahan♦ 25.6k●41●90

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Can one use Atiyah-Singer to prove that the Chern-Weil definition of Chern classes are $\mathbb{Z}$-cohomology classes?

jun 30 11 at 13:28 Paul Siegel 9,590●2●33●74

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homological algebra with spectra

jun 9 11 at 18:52 Dan Ramras 3,731●2●16●26

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