User kiran

26 votes

1 answer

831 views

Are complex-oriented ring spectra determined by their formal group law?

asked Aug 31, 2021 at 20:58

16 votes

3 answers

797 views

"Phantom" non-equivalences of spectra?

asked May 29, 2022 at 17:29

12 votes

1 answer

283 views

Is every complex oriented ring spectrum with additive FGL an Eilenberg-Maclane spectrum?

asked Sep 23, 2021 at 22:42

12 votes

1 answer

360 views

Can the Bousfield class of projective space be computed directly?

asked Apr 27, 2022 at 23:34

10 votes

1 answer

423 views

Does every complex orientable $E_\infty$-ring admit an $E_\infty$ complex orientation?

asked Dec 30, 2022 at 19:37

9 votes

0 answers

270 views

A kind of algebraic sphere?

asked May 24, 2021 at 20:32

4 votes

1 answer

367 views

Splitting the Witt vectors of $\overline{\mathbb{F}_p}$

asked Jan 13, 2022 at 23:04

4 votes

1 answer

192 views

Are Landweber exact spectra determined by their coefficient ring?

asked Apr 14, 2022 at 2:54

3 votes

2 answers

343 views

Some special subgroups of formal groups

asked Sep 22, 2020 at 3:18

3 votes

0 answers

228 views

A modern way to say "$G$ is compact and connected with torsion-free fundamental group"?

asked Oct 1, 2020 at 4:34

3 votes

0 answers

122 views

Is there a framed nullbordism of $T^4$ with an action of $T^4$ that extends the self-action?

asked Oct 13, 2022 at 21:48

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11 Questions

Are complex-oriented ring spectra determined by their formal group law?

"Phantom" non-equivalences of spectra?

Is every complex oriented ring spectrum with additive FGL an Eilenberg-Maclane spectrum?

Can the Bousfield class of projective space be computed directly?

Does every complex orientable $E_\infty$-ring admit an $E_\infty$ complex orientation?

A kind of algebraic sphere?

Splitting the Witt vectors of $\overline{\mathbb{F}_p}$

Are Landweber exact spectra determined by their coefficient ring?

Some special subgroups of formal groups

A modern way to say "$G$ is compact and connected with torsion-free fundamental group"?

Is there a framed nullbordism of $T^4$ with an action of $T^4$ that extends the self-action?