Itamar Sales

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18 Questions

views newest activity votes

4

votes

4

answers

437

views

Representation of $S^{3}$ as the union of two solid tori

general-topology algebraic-topology low-dimensional-topology

may 14 at 11:46 Ihechukwu Chinyere 6

3

votes

1

answer

116

views

Smooth Manifolds

manifolds

sep 18 at 14:10 Itamar Sales 317

3

votes

2

answers

164

views

Local Isomorphism on Topological Groups

lie-groups topological-groups

sep 12 at 14:28 t.b. 43.5k

1

3

votes

4

answers

638

views

$X$ is Hausdorff if and only if the diagonal of $X\times X$ is closed

general-topology

apr 26 '12 at 12:52 pirriperdos 99

1

2

votes

1

answer

122

views

Geodesic curvature/Metrics in R²

differential-geometry

feb 22 at 1:22 THW 151

2

votes

1

answer

129

views

Second countable topological space

general-topology

oct 4 at 21:43 Asaf Karagila 96.1k

2

votes

1

answer

137

views

Basis to a manifold by coordinate balls

general-topology

may 18 '12 at 0:48 Neal 6,740

2

votes

0

answers

113

views

Equivalent to the Euclidean fifth postulate

geometry

may 5 '12 at 4:09 Will Jagy 22.5k

1

2

votes

1

answer

131

views

Box topology on $\prod_{n=1}^\infty\mathbb{R}$

general-topology

apr 26 '12 at 2:22 David Mitra 41.8k

1

vote

1

answer

43

views

Nilpotent operator / Orthogonal projection

linear-algebra

may 29 at 7:31 Martin 4,452

1

vote

1

answer

40

views

Subset of $GL(n,R)$

block-matrices

may 20 at 14:29 Alistair Savage 1,519

1

vote

1

answer

120

views

Surfaces of revolution - Problem

differential-geometry surfaces

dec 1 at 5:38 orlandpm 2,313

1

vote

1

answer

192

views

Problem - Do Carmo's Curves and Surfaces

differential-geometry

nov 21 at 4:00 levap 2,263

1

vote

0

answers

65

views

Matrix subsets dimension

linear-algebra lie-groups

aug 18 at 12:55 Itamar Sales 317

0

votes

1

answer

90

views

Topological groups - Actions and Hausdorffness

topological-groups

oct 9 at 21:21 Makoto Kato 11.6k

0

votes

0

answers

46

views

Projective spaces - Disjoint union

algebraic-topology

oct 4 at 4:41 Itamar Sales 317

0

votes

1

answer

31

views

Local Isomorphism on Lie Groups II

general-topology lie-groups

sep 13 at 0:32 Brian M. Scott 162k

0

votes

3

answers

192

views

Disconnected space - Disjoint Union

general-topology

apr 29 '12 at 11:32 Ronnie Brown 3,074

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