User user173856

5 votes

1 answer

148 views

For what graph does the following algebraic property hold?

asked Jun 22, 2019 at 8:52

39 votes

5 answers

2k views

Is every path with this property shorter than another path with the same endpoints?

asked Jan 2, 2019 at 10:46

7 votes

1 answer

244 views

The determinant of a $4\times4$ matrix associated to some specific polynomial as follow

asked Oct 6, 2018 at 20:21

13 votes

0 answers

494 views

Is it possible that the following integral is $0$?

asked Oct 4, 2018 at 6:00

3 votes

1 answer

117 views

How many $2d$-elements subsets with specific property at most can we choose from $\{1,2,\cdots,n\}$

asked Sep 23, 2018 at 15:00

3 votes

1 answer

406 views

Does there exist a Lebesgue nonmeasurable set $E$ in $\mathbb{R}$ satisfies that $E\cap A$ is a Borel null set for every Borel null set $A$?

asked Jul 15, 2018 at 6:42

1 vote

1 answer

190 views

A question about a $2^n$-point metric space

asked Jun 1, 2018 at 18:35

0 votes

1 answer

115 views

The number of a family of sequences of subsets of $\{1,2,\cdots,n\}$

asked May 29, 2018 at 15:38

2 votes

2 answers

251 views

An inner product on the vector space $\mathbb{R}[x_1,\cdots,x_n]_m$

asked May 13, 2018 at 20:57

8 votes

1 answer

481 views

The anti-symmetrization of a kind of polynomials in $\mathbb{Z}[x_1,x_2,\ldots,x_n]$

asked May 6, 2018 at 16:18

1 vote

1 answer

130 views

A question about a continuous curve in $\mathbb{R}^2$

asked Oct 4, 2017 at 10:47

2 votes

1 answer

281 views

Approximation of an injective continuous curve by injective piecewise linear curves

asked Sep 29, 2017 at 17:19

1 vote

1 answer

138 views

A question about a closed continuous curve in the complex plane

asked Sep 7, 2017 at 16:24

2 votes

1 answer

2k views

The maximum number of edges in an even-cycle-free graph with $n$ vertices

asked Jun 24, 2017 at 18:45

4 votes

0 answers

261 views

Is the following integral positive or not?

asked Jun 19, 2017 at 18:44

3 votes

1 answer

167 views

The sign of the following integral

asked Jun 7, 2017 at 12:36

1 vote

0 answers

189 views

A question about the coefficient of a specific monomial in the expansion of the following polynomial

asked Mar 26, 2017 at 6:28

3 votes

0 answers

109 views

When does the constant term in the following expansion is nonzero?

asked Mar 24, 2017 at 11:36

4 votes

1 answer

385 views

A question about minimal graph of diameter $2$

asked Aug 30, 2016 at 15:51

2 votes

0 answers

177 views

Induced matchings in a bipartite graph with every matching having the same number of edges

asked Jul 8, 2016 at 14:48

4 votes

1 answer

268 views

The class of $(-1,0,1)$-matrices with all row sums and column sums equal to $0$

asked May 11, 2016 at 14:47

4 votes

1 answer

338 views

Two similar integrals

asked Apr 18, 2016 at 5:22

6 votes

1 answer

738 views

Is the following integral nonzero?

asked Apr 12, 2016 at 12:05

4 votes

0 answers

207 views

An operator derived from the divided difference operator $\partial_{w_0}$

asked Apr 1, 2016 at 16:36

7 votes

4 answers

511 views

The coefficient of a specific monomial of the following polynomial

asked Mar 26, 2016 at 16:09

6 votes

2 answers

523 views

A question about homogenous polynomials of degree $\frac{n(n-1)}{2}$

asked Mar 22, 2016 at 7:43

5 votes

1 answer

199 views

A decomposition of $w_0$ which is similar to the reduced decomposition

asked Mar 17, 2016 at 7:44

6 votes

2 answers

306 views

The coefficient of a specific monomial in the expansion of the following polynomial

asked Mar 7, 2016 at 15:45

1 vote

1 answer

110 views

A linear subspace of $\mathbb{R}[X_1,\cdots,X_n]$ and its generated set

asked Mar 5, 2016 at 15:32

5 votes

0 answers

133 views

Expectation of a specific random variable on the probability space of $n\times n$ matrices over $\{0,1\}$

asked Jan 18, 2016 at 8:50

Stack Exchange Network

49 Questions

For what graph does the following algebraic property hold?

Is every path with this property shorter than another path with the same endpoints?

The determinant of a $4\times4$ matrix associated to some specific polynomial as follow

Is it possible that the following integral is $0$?

How many $2d$-elements subsets with specific property at most can we choose from $\{1,2,\cdots,n\}$

Does there exist a Lebesgue nonmeasurable set $E$ in $\mathbb{R}$ satisfies that $E\cap A$ is a Borel null set for every Borel null set $A$?

A question about a $2^n$-point metric space

The number of a family of sequences of subsets of $\{1,2,\cdots,n\}$

An inner product on the vector space $\mathbb{R}[x_1,\cdots,x_n]_m$

The anti-symmetrization of a kind of polynomials in $\mathbb{Z}[x_1,x_2,\ldots,x_n]$

A question about a continuous curve in $\mathbb{R}^2$

Approximation of an injective continuous curve by injective piecewise linear curves

A question about a closed continuous curve in the complex plane

The maximum number of edges in an even-cycle-free graph with $n$ vertices

Is the following integral positive or not?

The sign of the following integral

A question about the coefficient of a specific monomial in the expansion of the following polynomial

When does the constant term in the following expansion is nonzero?

A question about minimal graph of diameter $2$

Induced matchings in a bipartite graph with every matching having the same number of edges

The class of $(-1,0,1)$-matrices with all row sums and column sums equal to $0$

Two similar integrals

Is the following integral nonzero?

An operator derived from the divided difference operator $\partial_{w_0}$

The coefficient of a specific monomial of the following polynomial

A question about homogenous polynomials of degree $\frac{n(n-1)}{2}$

A decomposition of $w_0$ which is similar to the reduced decomposition

The coefficient of a specific monomial in the expansion of the following polynomial

A linear subspace of $\mathbb{R}[X_1,\cdots,X_n]$ and its generated set

Expectation of a specific random variable on the probability space of $n\times n$ matrices over $\{0,1\}$