Question

Intuition behind 4-fold periodicity of $L$-theory

score 74 · Answer 1 · 2026-03-25 19:05:00

74

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Intuition behind 4-fold periodicity of $L$-theory

Published on 25 Mar 2026 - 19:05

score 82 · Answer 2 · 2026-03-26 07:31:53

82

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Milnor's construction

Published on 26 Mar 2026 - 7:31

score 313 · Answer 3 · 2026-03-25 08:12:50

313

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Is there a paper that explains Kasparov's KK theory in English?

Published on 25 Mar 2026 - 8:12

score 69 · Answer 4 · 2021-07-05 18:19:03

69

Views

Spaces with only even dimensional cells has zero $K^{-1}$ group?

Published on 05 Jul 2021 - 18:19

score 63 · Answer 5 · 2021-07-08 00:52:43

63

Views

What is the product in KO-theory in terms of concrete homogeneous spaces?

Published on 08 Jul 2021 - 0:52

score 45 · Answer 6 · 2021-07-11 02:24:05

45

Views

What does degree mean here? Question about universal coefficient theorem and $KK$ theory.

Published on 11 Jul 2021 - 2:24

score 51 · Answer 7 · 2021-07-14 00:18:53

51

Views

Why is universal coefficient theorem for $C^*$-algebras natural in both variables?

Published on 14 Jul 2021 - 0:18

score 79 · Answer 8 · 2021-08-26 15:17:00

79

Views

Different coefficient rings for the Chern classes and the Chern character

Published on 26 Aug 2021 - 15:17

score 60 · Answer 9 · 2021-08-27 02:54:40

60

Views

Relationship between Chern characters in the sense of Hatcher and in the sense of Roe

Published on 27 Aug 2021 - 2:54

score 296 · Answer 10 · 2026-03-26 01:04:33

296

Views

Thom class in K-theory for real vector bundles of odd rank and pushforwards in K-theory with degree shift

Published on 26 Mar 2026 - 1:04

score 232 · Answer 11 · 2021-10-13 15:19:25

232

Views

Stably isomorphic complex vector bundles which are not isomorphic

Published on 13 Oct 2021 - 15:19

score 111 · Answer 12 · 2022-01-30 02:28:24

111

Views

Is real topological $K$-theory subsumed by complex topological $K$-theory?

Published on 30 Jan 2022 - 2:28

score 68 · Answer 13 · 2022-02-16 09:05:05

68

Views

$X$ is a connected compact metric space. Is every $C^*$-embedding $M_n(\mathbb C)\to M_n(C(X))$ unitarily equivalent to the trivial one?

Published on 16 Feb 2022 - 9:05

score 82 · Answer 14 · 2022-03-19 15:04:27

82

Views

Is the first Stiefel-Whitney class an isomorphism if there is a unique orientable class?

Published on 19 Mar 2022 - 15:04

score 175 · Answer 15 · 2022-03-20 09:15:56

175

Views

Grothendieck group of noetherian scheme - why $\textbf{Coh}(X)$ is a set?

Published on 20 Mar 2022 - 9:15

List Question

Intuition behind 4-fold periodicity of $L$-theory

Milnor's construction

Is there a paper that explains Kasparov's KK theory in English?

Spaces with only even dimensional cells has zero $K^{-1}$ group?

What is the product in KO-theory in terms of concrete homogeneous spaces?

What does degree mean here? Question about universal coefficient theorem and $KK$ theory.

Why is universal coefficient theorem for $C^*$-algebras natural in both variables?

Different coefficient rings for the Chern classes and the Chern character

Relationship between Chern characters in the sense of Hatcher and in the sense of Roe

Thom class in K-theory for real vector bundles of odd rank and pushforwards in K-theory with degree shift

Stably isomorphic complex vector bundles which are not isomorphic

Is real topological $K$-theory subsumed by complex topological $K$-theory?

$X$ is a connected compact metric space. Is every $C^*$-embedding $M_n(\mathbb C)\to M_n(C(X))$ unitarily equivalent to the trivial one?

Is the first Stiefel-Whitney class an isomorphism if there is a unique orientable class?

Grothendieck group of noetherian scheme - why $\textbf{Coh}(X)$ is a set?

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