Question

How to show that the quotient map $q : \Bbb C^{n+1}-\{0\} \to \Bbb CP^n $ is a closed map?

score 70 · Answer 1 · 2019-09-25 13:31:47

70

Views

How to show that the quotient map $q : \Bbb C^{n+1}-\{0\} \to \Bbb CP^n $ is a closed map?

Published on 25 Sep 2019 - 13:31

score 62 · Answer 2 · 2019-09-25 14:15:17

62

Views

Is a surjective continuous map that makes the same identifications with a quotient map is a quotient map?

Published on 25 Sep 2019 - 14:15

score 216 · Answer 3 · 2019-09-25 20:44:02

216

Views

A question about tensor product in Tim Gowers' note

Published on 25 Sep 2019 - 20:44

score 855 · Answer 4 · 2026-03-25 19:25:25

855

Views

Number of fixed points of a hyperbolic toral automorphism

Published on 25 Mar 2026 - 19:25

score 25 · Answer 5 · 2026-03-25 22:06:00

25

Views

Quotient of M(2,C) by the conjugate action of GL(2,C)

Published on 25 Mar 2026 - 22:06

score 67 · Answer 6 · 2026-03-25 06:12:57

67

Views

If $X$ infinite dimensional and $F\colon X\to\mathbb{F}^{n}$ linear, then $\ker(F)$ infinite dimensional subspace of $X$.

Published on 25 Mar 2026 - 6:12

score 44 · Answer 7 · 2019-09-30 21:11:57

44

Views

Induced Bilinear Form on $V/A$

Published on 30 Sep 2019 - 21:11

score 94 · Answer 8 · 2014-03-21 21:18:51

94

Views

Realizations of Circle

Published on 21 Mar 2014 - 21:18

score 120 · Answer 9 · 2014-03-27 15:55:56

120

Views

How to show that the dimension of a quotient space in the field of polynomials is not finite?

Published on 27 Mar 2014 - 15:55

score 139 · Answer 10 · 2014-04-01 11:45:46

139

Views

Relation Between Free Quotients and Modules

Published on 01 Apr 2014 - 11:45

score 94 · Answer 11 · 2014-04-03 18:23:13

94

Views

Need help on Quotient Spaces

Published on 03 Apr 2014 - 18:23

score 189 · Answer 12 · 2014-04-27 16:19:57

189

Views

Does completing a normed space commute with taking quotients?

Published on 27 Apr 2014 - 16:19

score 97 · Answer 13 · 2014-05-06 03:04:18

97

Views

Openess of sets given by equivalence relations in the quotient topology.

Published on 06 May 2014 - 3:04

score 1.1k · Answer 14 · 2014-05-07 03:58:26

1.1k

Views

Proving that $X/R$ is Hausdorff $\implies$ $R$ closed.

Published on 07 May 2014 - 3:58

score 1.5k · Answer 15 · 2014-05-08 20:46:46

1.5k

Views

Are these quotient spaces homeomorphic to a cylinder and to the Möbius Strip?

Published on 08 May 2014 - 20:46

List Question

How to show that the quotient map $q : \Bbb C^{n+1}-\{0\} \to \Bbb CP^n $ is a closed map?

Is a surjective continuous map that makes the same identifications with a quotient map is a quotient map?

A question about tensor product in Tim Gowers' note

Number of fixed points of a hyperbolic toral automorphism

Quotient of M(2,C) by the conjugate action of GL(2,C)

If $X$ infinite dimensional and $F\colon X\to\mathbb{F}^{n}$ linear, then $\ker(F)$ infinite dimensional subspace of $X$.

Induced Bilinear Form on $V/A$

Realizations of Circle

How to show that the dimension of a quotient space in the field of polynomials is not finite?

Relation Between Free Quotients and Modules

Need help on Quotient Spaces

Does completing a normed space commute with taking quotients?

Openess of sets given by equivalence relations in the quotient topology.

Proving that $X/R$ is Hausdorff $\implies$ $R$ closed.

Are these quotient spaces homeomorphic to a cylinder and to the Möbius Strip?

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