User Matt N. - Mathematics Stack Exchange

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	15,337 reputation	bio	website		visits	member for	2 years, 4 months
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5

9

votes

2

answers

269

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problem books in functional analysis

dec 18 at 2:40 Learner 3,339

1

5

votes

1

answer

101

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Intersection paring on homology and cup product cohomology?

algebraic-geometry algebraic-topology intersection-theory

dec 9 at 10:47 mland 1,401

2

6

votes

3

answers

179

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Prime spectrum of a ring, understanding geometry

algebraic-geometry commutative-algebra

nov 27 at 21:30 Rankeya 4,224

1

3

votes

0

answers

62

views

The concept of premeasure

measure-theory

nov 26 at 10:18 D.. 620

1

7

votes

2

answers

195

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Fast paced book in point-set topology to move on to algebraic topology

general-topology reference-request algebraic-topology soft-question

nov 24 at 9:11 Javier Álvarez 4,794

1

5

votes

1

answer

77

views

Looking for an atlas with 1 chart

manifolds

nov 23 at 16:21 Hans Engler 2,799

1

2

votes

1

answer

66

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homeomorphism between the usual hawaiian ring and the onesided hawaiian ring

general-topology connectedness

nov 16 at 1:17 Brian M. Scott 155k

54

117

votes

27

answers

7

kviews

Too old to start math

soft-question intuition self-learning learning advice

mar 12 at 19:05 Harry Weston 211

1

3

votes

1

answer

98

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Finding the norm of the operators

functional-analysis operator-theory norm

nov 12 at 22:36 Davide Giraudo 56.4k

2

5

votes

1

answer

210

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Show the Fourier transform is continuous in the Schwartz space $\mathcal S(\Bbb R)$

functional-analysis fourier-analysis

jan 15 at 7:48 lee 624

2

3

votes

2

answers

105

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For normal $T\in\mathcal{B}(H)$ operator $T$ is injective iff its image is dense

functional-analysis operator-theory

nov 11 at 20:41 Norbert 20.8k

2

1

vote

1

answer

131

views

Proof of sigma-additivity for measures

real-analysis measure-theory

nov 7 at 14:08 Peter 1,249

1

3

votes

2

answers

130

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Line integration with non analytic function

complex-analysis

nov 6 at 13:33 pritam 4,639

1

2

votes

1

answer

265

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Show smooth functions of compact support are dense in the Schwartz space

functional-analysis fourier-analysis

nov 11 at 16:28 Matt N. 15.3k

1

3

votes

1

answer

68

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Is a module an inverse limit of finitely generated modules?

commutative-algebra ring-theory modules

nov 1 at 17:43 Community♦ 1

2

1

vote

1

answer

66

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Extension of real smooth function to a holomorphic function.

complex-analysis

oct 31 at 16:17 John Wordsworth 9,343

1

vote

2

answers

77

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Help with an operator norm

functional-analysis operator-theory norm

oct 30 at 15:47 Norbert 20.8k

1

2

votes

2

answers

176

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Any example of manifold without global trivialization of tangent bundle?

differential-geometry manifolds

oct 25 at 1:57 Neal 6,560

2

3

votes

1

answer

249

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$\ell_{p}$ space is not Hilbert for any norm if $p\neq 2$

functional-analysis hilbert-spaces lp-spaces

oct 28 at 6:27 Martin Sleziak 20.3k

1

4

votes

1

answer

197

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Transcendental extensions of $\mathbb{Q}$ containing algebraic elements.

abstract-algebra field-theory

oct 19 at 10:31 Hagen 3,347

1

5

votes

2

answers

138

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Why this topological space is not a topological manifold?

general-topology algebraic-topology manifolds

oct 17 at 2:26 Brian M. Scott 155k

1

3

votes

2

answers

91

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Direct limit of $\mathbb{Z}$ homomorpisms

abstract-algebra group-theory abelian-groups

oct 18 at 17:31 mercio 11.4k

2

6

votes

1

answer

147

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Basics of Haar measure

measure-theory topological-groups harmonic-analysis

oct 15 at 12:06 froggie 4,935

1

vote

1

answer

92

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Sequence of Functions in the box and product topologies.

general-topology

oct 10 at 8:01 Brian M. Scott 155k

3

votes

2

answers

215

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Every proper subspace of a normed linear space is not open

functional-analysis

oct 9 at 21:22 Henning Makholm 53.6k

2

1

vote

1

answer

121

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About $p$-adic Topology on $\mathbb{Z}$

general-topology p-adic-number-theory

oct 6 at 18:31 Graphth 6,533

1

7

votes

1

answer

232

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Pointwise convergence of continuous functions implies uniform convergence on some open subset

functional-analysis banach-spaces

sep 30 at 14:05 Siminore 7,860

2

6

votes

1

answer

180

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pointwise limit on a complete metric space

general-topology functional-analysis metric-spaces continuity

sep 30 at 12:38 Davide Giraudo 56.4k

1

vote

1

answer

89

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Exercise of operator norm

functional-analysis

feb 28 at 13:17 Norbert 20.8k

10

17

votes

4

answers

951

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What are the required backgrounds of Robin Hartshorne's Algebraic Geometry book?

reference-request algebraic-geometry

nov 25 at 11:09 Javier Álvarez 4,794

Matt N.

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