User user1559897

16 votes

4 answers

5k views

What is a good book for math students to learn machine learning in depth?

asked Jul 13, 2016 at 0:01

13 votes

3 answers

11k views

What does it mean to integrate a Brownian motion with respect to time?

asked Jul 8, 2016 at 18:08

11 votes

1 answer

8k views

Why is a graph Laplacian matrix positive semidefinite?

asked Oct 30, 2014 at 1:24

8 votes

3 answers

4k views

Can anyone recommend a numerical optimization book or course note?

asked Dec 30, 2017 at 4:47

5 votes

3 answers

3k views

Why is an equicontinuous and pointwise bounded sequence of real-valued functions on a compact metric space uniformly bounded?

asked Sep 21, 2016 at 0:07

4 votes

2 answers

2k views

When a Markov chain converges to a steady state, what kind of convergence is it?

asked Jul 14, 2016 at 23:47

4 votes

1 answer

176 views

Why is the discrete formulation of the fundamental theorem of integral calculus correct?

asked May 23, 2016 at 0:08

4 votes

2 answers

363 views

Why does a filtration represent information over time?

asked Jan 15, 2018 at 3:41

3 votes

2 answers

602 views

What is the idea behind expm1 to avoid cancellation error?

asked Oct 6, 2019 at 19:55

3 votes

1 answer

2k views

Pseudoinverse and norm

asked Aug 15, 2017 at 2:22

3 votes

0 answers

165 views

A question regarding Vitali Covering Covering Lemma

asked May 21, 2016 at 20:38

3 votes

1 answer

1k views

Why are the positive measure and negative measure induced by the Hahn Decomposition mutually singular?

asked May 18, 2016 at 0:41

3 votes

1 answer

222 views

Can anyone explain the connections among ring, semiring, algebra, sigmaalgebra in the scope of measure theory?

asked May 19, 2016 at 0:20

3 votes

3 answers

1k views

Is it true that every finite dimensional matrix is a bounded linear operator? [closed]

asked Sep 10, 2016 at 14:52

2 votes

1 answer

144 views

Let X be a linear space, why is the dual space of X a Banach space?

asked Sep 9, 2016 at 1:03

2 votes

0 answers

397 views

One question regarding independence of $\pi$ systems.

asked Jun 23, 2016 at 22:37

2 votes

0 answers

222 views

What is a good way to think of Caratheodory Hahn theorem intuitively?

asked May 19, 2016 at 23:15

2 votes

1 answer

168 views

When is the function f(x)=$\alpha x(1-x)$ a contraction?

asked Sep 29, 2016 at 23:53

2 votes

1 answer

59 views

Why is function y in Riemann steiltjes integral $\int xdy$ required to be monotonic?

asked Sep 1, 2016 at 0:25

2 votes

1 answer

845 views

Is there a way to write conditional expectation as an integral?

asked Jul 10, 2016 at 13:20

2 votes

1 answer

112 views

Can anyone explain one sentence in the proof of the claim that monotone functions are continuous except at a countable number of points?

asked May 13, 2016 at 1:35

2 votes

1 answer

155 views

Can anyone explain one claim about the infinity norm?

asked May 14, 2016 at 2:31

2 votes

1 answer

137 views

Can anyone explain one formula in the derivation of a branching process example?

asked Jun 14, 2016 at 12:34

2 votes

1 answer

659 views

A question regarding the proof of Riesz Representation Theorem for the dual of Lp.

asked Jun 18, 2016 at 20:28

2 votes

1 answer

603 views

Can anyone explain the connection between reverse fatou's lemma and Fatou's lemma?

asked Jun 20, 2016 at 23:07

2 votes

0 answers

211 views

How to solve this difference equation using Laplace transformation?

asked Aug 30, 2017 at 4:39

2 votes

2 answers

244 views

Fourier transform of the 1-dimension heat equation

asked Nov 28, 2017 at 4:20

2 votes

1 answer

55 views

What is the integral used in this notation?

asked Jan 15, 2018 at 17:05

2 votes

1 answer

289 views

Why does k-fold cross validation generate an MSE estimator that has higher bias, but lower variance then leave-one-out cross-validation?

asked Jan 26, 2018 at 3:20

1 vote

0 answers

40 views

One question regarding the jacobian of a function

asked Feb 19, 2018 at 3:15

Stack Exchange Network

101 Questions

What is a good book for math students to learn machine learning in depth?

What does it mean to integrate a Brownian motion with respect to time?

Why is a graph Laplacian matrix positive semidefinite?

Can anyone recommend a numerical optimization book or course note?

Why is an equicontinuous and pointwise bounded sequence of real-valued functions on a compact metric space uniformly bounded?

When a Markov chain converges to a steady state, what kind of convergence is it?

Why is the discrete formulation of the fundamental theorem of integral calculus correct?

Why does a filtration represent information over time?

What is the idea behind expm1 to avoid cancellation error?

Pseudoinverse and norm

A question regarding Vitali Covering Covering Lemma

Why are the positive measure and negative measure induced by the Hahn Decomposition mutually singular?

Can anyone explain the connections among ring, semiring, algebra, sigmaalgebra in the scope of measure theory?

Is it true that every finite dimensional matrix is a bounded linear operator? [closed]

Let X be a linear space, why is the dual space of X a Banach space?

One question regarding independence of $\pi$ systems.

What is a good way to think of Caratheodory Hahn theorem intuitively?

When is the function f(x)=$\alpha x(1-x)$ a contraction?

Why is function y in Riemann steiltjes integral $\int xdy$ required to be monotonic?

Is there a way to write conditional expectation as an integral?

Can anyone explain one sentence in the proof of the claim that monotone functions are continuous except at a countable number of points?

Can anyone explain one claim about the infinity norm?

Can anyone explain one formula in the derivation of a branching process example?

A question regarding the proof of Riesz Representation Theorem for the dual of Lp.

Can anyone explain the connection between reverse fatou's lemma and Fatou's lemma?

How to solve this difference equation using Laplace transformation?

Fourier transform of the 1-dimension heat equation

What is the integral used in this notation?

Why does k-fold cross validation generate an MSE estimator that has higher bias, but lower variance then leave-one-out cross-validation?

One question regarding the jacobian of a function