User checkmath

32 votes

4 answers

9k views

Limit of $L^p$ norm when $p\to0$

asked Mar 1, 2012 at 21:26

27 votes

1 answer

8k views

How to prove that an operator is compact?

asked Mar 2, 2012 at 22:45

15 votes

2 answers

5k views

Isometric Embedding of a separable Banach Space into $\ell^{\infty}$

asked Feb 23, 2012 at 21:57

13 votes

2 answers

5k views

An uncountable family of measurable sets with positive measure

asked Feb 29, 2012 at 22:50

13 votes

2 answers

4k views

About connected Lie Groups

asked Apr 26, 2012 at 14:27

12 votes

2 answers

5k views

The graph of a measurable function

asked Mar 8, 2012 at 12:53

12 votes

1 answer

2k views

An application of J.-L. Lion's Lemma

asked Mar 9, 2012 at 17:33

11 votes

2 answers

3k views

Approximation of the identity and Hardy-Littlewood maximal function

asked Feb 27, 2012 at 15:49

11 votes

1 answer

560 views

About a measurable function in $\mathbb{R}$

asked Mar 1, 2012 at 21:11

7 votes

4 answers

584 views

About the $p$ summable sequences

asked Feb 21, 2012 at 18:30

6 votes

1 answer

931 views

Functions of bounded variation on all $\mathbb{R}$

asked Mar 4, 2012 at 2:48

6 votes

2 answers

349 views

A sequence of singular measures converging weakly* to a continuous measure

asked Mar 10, 2012 at 4:25

6 votes

0 answers

229 views

About the Platonic Solids in all dimensions

asked May 4, 2012 at 22:58

6 votes

2 answers

1k views

The closure of $C^1$ in the functions of bounded variation

asked Mar 9, 2012 at 0:24

6 votes

1 answer

174 views

A Marcinkiewicz approach

asked Aug 5, 2012 at 0:11

5 votes

1 answer

280 views

A measurable function

asked Mar 7, 2012 at 21:10

5 votes

5 answers

2k views

History of the construction of $\mathbb{R}$

asked Feb 19, 2012 at 20:18

4 votes

1 answer

157 views

A non weakly convergent sequence in $L^p(\mathbb{N})$

asked Feb 25, 2012 at 2:07

4 votes

1 answer

123 views

A dense scission of $\mathbb{R}$

asked Mar 3, 2012 at 20:30

4 votes

1 answer

386 views

A Hilbert basis for $L^2 ([0,1]\times[0,1])$

asked Feb 29, 2012 at 23:01

4 votes

0 answers

189 views

The Lebesgue differentiation Theorem holds for any measure?

asked Mar 7, 2012 at 2:55

4 votes

1 answer

455 views

Weak derivatives

asked May 14, 2012 at 22:17

4 votes

2 answers

938 views

The cone is not immersed in $\mathbb{R}^3$

asked May 15, 2012 at 22:06

4 votes

1 answer

423 views

How to show that "spheres" are diffeomorphic?

asked May 30, 2012 at 15:25

4 votes

0 answers

157 views

Series of Maximal Operator

asked Jul 31, 2012 at 21:55

3 votes

1 answer

159 views

Cauchy sequences when $p$ is a function

asked Jul 23, 2012 at 21:11

3 votes

1 answer

208 views

the integral of a periodic function

asked Jul 13, 2012 at 22:50

3 votes

1 answer

299 views

Levi-Civita connection

asked Nov 23, 2012 at 18:17

3 votes

0 answers

413 views

Radon-Nikodym Decomposition

asked Mar 9, 2012 at 0:12

3 votes

1 answer

345 views

Reference for Radon measure

asked Mar 14, 2012 at 3:53

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51 Questions

Limit of $L^p$ norm when $p\to0$

How to prove that an operator is compact?

Isometric Embedding of a separable Banach Space into $\ell^{\infty}$

An uncountable family of measurable sets with positive measure

About connected Lie Groups

The graph of a measurable function

An application of J.-L. Lion's Lemma

Approximation of the identity and Hardy-Littlewood maximal function

About a measurable function in $\mathbb{R}$

About the $p$ summable sequences

Functions of bounded variation on all $\mathbb{R}$

A sequence of singular measures converging weakly* to a continuous measure

About the Platonic Solids in all dimensions

The closure of $C^1$ in the functions of bounded variation

A Marcinkiewicz approach

A measurable function

History of the construction of $\mathbb{R}$

A non weakly convergent sequence in $L^p(\mathbb{N})$

A dense scission of $\mathbb{R}$

A Hilbert basis for $L^2 ([0,1]\times[0,1])$

The Lebesgue differentiation Theorem holds for any measure?

Weak derivatives

The cone is not immersed in $\mathbb{R}^3$

How to show that "spheres" are diffeomorphic?

Series of Maximal Operator

Cauchy sequences when $p$ is a function

the integral of a periodic function

Levi-Civita connection

Radon-Nikodym Decomposition

Reference for Radon measure