User Yaroslav Bulatov - Mathematics Stack Exchange

Yaroslav Bulatov

Member for 13 years, 4 months
Last seen this week

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medium.com/@yaroslavvb
San Francisco, CA, United States

34 Answers

Score Activity Newest

15 votes

How do Lagrange multipliers work to find the lowest value of a function subject to a constraint?

answered Aug 10, 2010 at 17:42

7 votes

Local variables when defining function in Mathematica

answered Mar 24, 2011 at 23:30

6 votes

Accepted

On the existence of closed form solutions to finite combinatorial problems

answered Feb 25, 2011 at 23:10

5 votes

Mathematica's "Solve" and filtering out the one real (non-complex) solution

answered Mar 21, 2011 at 6:13

5 votes

Best way to exactly solve a linear system (300x300) with integer coefficients

answered Feb 3, 2011 at 19:23

3 votes

Accepted

Union on Graph Data in Mathematica

answered Mar 18, 2011 at 11:05

3 votes

Getting edge cut from eigenvector of adjacency matrix

answered Apr 11, 2011 at 18:13

3 votes

Neural Network matrix calculus

answered Jul 4, 2021 at 17:18

3 votes

Accepted

What is the maximum number of rows of a random matrix that is not full rank?

answered Mar 24 at 15:55

2 votes

Sorted eigenvalues decay with a nice law: is this a coincidence?

answered Jul 18, 2022 at 21:46

2 votes

How to solve transcendental equations with Mathematica 7?

answered Feb 20, 2011 at 20:11

2 votes

Accepted

Automated generation of a parametric plot?

answered Jan 24, 2012 at 2:40

2 votes

Name of this matrix product?

answered Mar 28, 2017 at 18:22

2 votes

Are there variations on least-squares approximations?

answered Aug 10, 2010 at 17:51

1 vote

How to calculate the expected distribution of results using random numbers?

answered Sep 5, 2010 at 17:04

1 vote

Going back from a correlation matrix to the original matrix

answered Jan 16, 2011 at 7:44

1 vote

Higher dimensional analog to planar graphs?

answered Feb 18, 2011 at 21:18

1 vote

Operator norm of $\frac{x^TW^Tx\cdot I-Wxx^T}{||Wx||^2}$.

answered Sep 13, 2020 at 22:31

1 vote

Spectral radius of $\text{diag}(s)+s1'$

answered Sep 30, 2020 at 19:33

1 vote

Accepted

Would adding a symmetric positive semi-definite matrix to a non-symmetric positive definite matrix increase the spectral radius?

answered Nov 2, 2020 at 20:27

1 vote

Cholesky decomposition of the inverse of a matrix

answered Jul 14, 2022 at 22:55

1 vote

Simplifying Presentation of Solutions in Mathematica

answered Apr 2, 2011 at 21:15

1 vote

For $A\in \mathbb R^{n\times n}$, when is $A+A^T$ positive semi-definite?

answered Aug 15, 2022 at 19:35

1 vote

Integral approximation of $\sum_{j=0}^\infty \frac{(-2)^j}{\exp j }$

answered Jul 8, 2021 at 15:49

1 vote

Accepted

When is $A+A^T$ positive definite?

answered Aug 15, 2022 at 22:27

0 votes

Relating the SVD of $AB^T$ and $B^TA$

answered Apr 26 at 0:46

0 votes

Discrete Fisher Information

answered May 9 at 9:01

0 votes

Distribution of squared coordinate of points on $n$-sphere?

answered Jun 18 at 17:47

0 votes

Solving for the projection of a solution to a large linear system

answered Nov 12 at 16:50

0 votes

Distribution of k'th squared singular value of a Gaussian matrix?

answered Nov 23 at 18:59

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