Question

Problem 22.39(a) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.

score 95 · Answer 1 · 2026-05-10 15:09:46

95

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Problem 22.39(a) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.

Published on 10 May 2026 - 15:09

score 137 · Answer 2 · 2026-03-25 13:58:09

137

Views

Problem 22.39(b) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.(u is the natural transformation of cohomology theories.)

Published on 25 Mar 2026 - 13:58

score 175 · Answer 3 · 2026-04-09 12:03:07

175

Views

Show that a retract of a cofibration is also a cofibration.

Published on 09 Apr 2026 - 12:03

score 86 · Answer 4 · 2026-04-14 13:00:44

86

Views

Problem 22.39(c) in "Modern Classical Homotopy Theory " by Jeffery Strom on pg.511.

Published on 14 Apr 2026 - 13:00

score 71 · Answer 5 · 2026-05-10 17:20:20

71

Views

What are the K groups of $X_n$?

Published on 10 May 2026 - 17:20

score 44 · Answer 6 · 2026-05-10 18:15:48

44

Views

Help with a problem in K-theory/C- algebras.

Published on 10 May 2026 - 18:15

score 172 · Answer 7 · 2026-05-10 18:16:58

172

Views

What are the K groups of $X_n$, the wedge sum of $n$ circles at a single point?

Published on 10 May 2026 - 18:16

score 654 · Answer 8 · 2026-03-25 13:54:44

654

Views

Chern Character of the dual bundle

Published on 25 Mar 2026 - 13:54

score 168 · Answer 9 · 2026-04-16 01:21:32

168

Views

Trace, dimension and equivalence in $M_n(\mathbb{C})$

Published on 16 Apr 2026 - 1:21

score 84 · Answer 10 · 2026-04-14 00:44:12

84

Views

Generators for $K_1(A\otimes \mathbb{K})$

Published on 14 Apr 2026 - 0:44

score 53 · Answer 11 · 2026-04-10 22:59:05

53

Views

Show that $\mathcal{D}(\mathbb{C}) \cong \mathbb{Z}^+$

Published on 10 Apr 2026 - 22:59

score 93 · Answer 12 · 2026-03-25 13:59:51

93

Views

Show that $\mathbf{D}(\mathbb{C}\bigoplus \mathbb{C})$ is isomorphic to the additive semigroup $\mathbb{Z}^+\bigoplus \mathbb{Z}^+.$

Published on 25 Mar 2026 - 13:59

score 62 · Answer 13 · 2026-04-17 02:33:33

62

Views

$C_0(X)$ isomorphic to $C_0(X_1) \oplus C_0(X_2)$ when $X=X_1 \cup X_2$ for X locally compact Hausdorff

Published on 17 Apr 2026 - 2:33

score 193 · Answer 14 · 2026-04-17 02:56:32

193

Views

Show that $K_0(A)$ is a countable abelian group when $A$ is a separable $C^*$-algebra.

Published on 17 Apr 2026 - 2:56

score 64 · Answer 15 · 2026-05-10 18:25:14

64

Views

Univesal Coefficient Theorem for $C^*$-algebras

Published on 10 May 2026 - 18:25

List Question

Problem 22.39(a) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.

Problem 22.39(b) in " Modern classical homotopy Theory " by Jeffery Strom on pg.511.(u is the natural transformation of cohomology theories.)

Show that a retract of a cofibration is also a cofibration.

Problem 22.39(c) in "Modern Classical Homotopy Theory " by Jeffery Strom on pg.511.

What are the K groups of $X_n$?

Help with a problem in K-theory/C- algebras.

What are the K groups of $X_n$, the wedge sum of $n$ circles at a single point?

Chern Character of the dual bundle

Trace, dimension and equivalence in $M_n(\mathbb{C})$

Generators for $K_1(A\otimes \mathbb{K})$

Show that $\mathcal{D}(\mathbb{C}) \cong \mathbb{Z}^+$

Show that $\mathbf{D}(\mathbb{C}\bigoplus \mathbb{C})$ is isomorphic to the additive semigroup $\mathbb{Z}^+\bigoplus \mathbb{Z}^+.$

$C_0(X)$ isomorphic to $C_0(X_1) \oplus C_0(X_2)$ when $X=X_1 \cup X_2$ for X locally compact Hausdorff

Show that $K_0(A)$ is a countable abelian group when $A$ is a separable $C^*$-algebra.

Univesal Coefficient Theorem for $C^*$-algebras

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