User Kernel_Dirichlet

7 votes

0 answers

1k views

Weak analogues of gradient, divergence, and curl (collecting examples)

asked Nov 28, 2018 at 20:13

5 votes

1 answer

2k views

Nonlinear transport equation solution breakdown

asked Dec 10, 2017 at 3:13

4 votes

1 answer

298 views

Examples of $C^1(\mathbb{R}^2)$ functions where mixed partials are equal nowhere

asked Jun 24, 2017 at 3:41

3 votes

2 answers

135 views

Completion of a metric space with respect to an unusual metric

asked Sep 11, 2017 at 13:59

3 votes

1 answer

995 views

Conservation law and entropy condition problem

asked Dec 11, 2017 at 16:58

2 votes

0 answers

73 views

Constructing a fractal

asked Nov 12, 2017 at 4:52

2 votes

2 answers

127 views

Questions about an unusual metric space

asked Sep 15, 2017 at 17:18

2 votes

1 answer

172 views

Question about an unusual inner product

asked Sep 18, 2017 at 14:32

2 votes

1 answer

151 views

Question about relationship between $\ell^ p$ spaces and Fourier coefficients.

asked Mar 6, 2017 at 19:01

1 vote

1 answer

203 views

Is there a way to turn a dense set of functions in $L^2([a,b])$ into an orthonormal set?

asked Feb 13, 2017 at 17:39

1 vote

1 answer

1k views

What can be said about an $L^2$ function whose Fourier series is zero almost everywhere?

asked Mar 5, 2017 at 5:15

1 vote

1 answer

299 views

Continuous embeddings of $C(a,b)$ into itself with $L^p$ norms.

asked Sep 21, 2017 at 2:22

1 vote

1 answer

292 views

Thomae's function variant

asked Oct 9, 2017 at 1:03

1 vote

1 answer

544 views

cleaning up proof that Thomae's function is not $BV([0,1])$

asked Oct 11, 2017 at 3:21

1 vote

2 answers

286 views

Understanding Distributions

asked Dec 18, 2017 at 23:09

1 vote

0 answers

42 views

inhomogenous Fredholm equation

asked Feb 9, 2018 at 18:07

1 vote

0 answers

71 views

How can we handle this exponential integral?

asked Feb 21, 2018 at 16:23

1 vote

1 answer

152 views

Similarity method Transport equation

asked Oct 30, 2017 at 20:14

1 vote

0 answers

84 views

Partitioning an open set into a convex and non-convex set

asked Feb 26, 2018 at 17:02

1 vote

0 answers

71 views

Fredholm equation for non-relativistic scattering

asked Mar 6, 2018 at 3:47

1 vote

1 answer

95 views

Construct a sequence of simple functions converging to $f\in C([a,b])$

asked Apr 23, 2018 at 19:55

0 votes

1 answer

244 views

Countable subadditivity of $L^p$ norms (proof check)

asked Sep 30, 2018 at 1:46

0 votes

1 answer

435 views

Eigenvalues of Fredholm Integral problem

asked Mar 2, 2018 at 2:30

0 votes

0 answers

463 views

Optimal Poincare constant in $W^{1,p}(\Omega)$

asked Feb 25, 2018 at 17:03

0 votes

1 answer

1k views

Construction and properties of a fat Cantor set (HW question)

asked Oct 16, 2017 at 2:11

0 votes

0 answers

74 views

Question mark function not absolutely continuous

asked Nov 14, 2017 at 2:25

0 votes

0 answers

70 views

Old real analysis exam question about convergence of an unusual sequence of functions in $C(a,b)$

asked Sep 25, 2017 at 14:18

0 votes

1 answer

147 views

Question about computing variation of some functions

asked Oct 2, 2017 at 2:46

0 votes

1 answer

877 views

Computing decay of Fourier coefficients

asked Mar 31, 2017 at 16:08

0 votes

1 answer

518 views

Contraction mappings in $L^p$ and other function spaces

asked May 7, 2017 at 1:11

Stack Exchange Network

30 Questions

Weak analogues of gradient, divergence, and curl (collecting examples)

Nonlinear transport equation solution breakdown

Examples of $C^1(\mathbb{R}^2)$ functions where mixed partials are equal nowhere

Completion of a metric space with respect to an unusual metric

Conservation law and entropy condition problem

Constructing a fractal

Questions about an unusual metric space

Question about an unusual inner product

Question about relationship between $\ell^ p$ spaces and Fourier coefficients.

Is there a way to turn a dense set of functions in $L^2([a,b])$ into an orthonormal set?

What can be said about an $L^2$ function whose Fourier series is zero almost everywhere?

Continuous embeddings of $C(a,b)$ into itself with $L^p$ norms.

Thomae's function variant

cleaning up proof that Thomae's function is not $BV([0,1])$

Understanding Distributions

inhomogenous Fredholm equation

How can we handle this exponential integral?

Similarity method Transport equation

Partitioning an open set into a convex and non-convex set

Fredholm equation for non-relativistic scattering

Construct a sequence of simple functions converging to $f\in C([a,b])$

Countable subadditivity of $L^p$ norms (proof check)

Eigenvalues of Fredholm Integral problem

Optimal Poincare constant in $W^{1,p}(\Omega)$

Construction and properties of a fat Cantor set (HW question)

Question mark function not absolutely continuous

Old real analysis exam question about convergence of an unusual sequence of functions in $C(a,b)$

Question about computing variation of some functions

Computing decay of Fourier coefficients

Contraction mappings in $L^p$ and other function spaces