User Martin

19 votes

1 answer

825 views

Number of matrices with given Smith normal form

asked Apr 30, 2015 at 8:09

17 votes

3 answers

967 views

Can the Repdigit 77...77 be the sum of two squares?

asked Apr 27, 2014 at 17:13

17 votes

2 answers

878 views

Why is 12 the smallest weight for which a cusp forms exists

asked Jun 16, 2016 at 10:37

9 votes

2 answers

2k views

Completion and algebraic closure

asked Aug 16, 2016 at 15:35

5 votes

1 answer

228 views

Error in integral in Gradshteyn Ryzhik

asked Aug 22, 2016 at 9:42

5 votes

0 answers

184 views

Is $699 \ldots 998$ value of the Euler totient function?

asked Jul 10, 2017 at 15:03

5 votes

2 answers

4k views

Determinant of block tridiagonal matrices

asked Jun 30, 2015 at 10:50

4 votes

2 answers

473 views

Polynomial ring operations on $\mathbb{Z}$

asked Jul 22, 2016 at 14:44

3 votes

2 answers

779 views

Primes of the form $p=x^2-ny^2$

asked Nov 1, 2016 at 13:58

3 votes

0 answers

192 views

Can $\exp(W(\sqrt{\ln(\sqrt{n})})$ be an integer?

asked Nov 23, 2021 at 21:51

3 votes

2 answers

677 views

Sum of two squares - Number of steps in Fermat descent

asked Jan 30, 2015 at 18:43

2 votes

0 answers

192 views

Equation in the Gaussian Integers

asked Jun 6, 2014 at 15:19

2 votes

1 answer

386 views

Algorithm for cliques in weighted graph

asked Oct 26, 2018 at 9:59

1 vote

1 answer

122 views

Source for equations involving congruences of Fibonacci and Lucas numbers

asked Mar 25, 2015 at 15:40

1 vote

2 answers

218 views

Values of the Kronecker symbol of recursive sequences

asked Aug 13, 2015 at 8:50

1 vote

0 answers

149 views

Product of elementary divisors

asked Oct 14, 2015 at 16:32

1 vote

0 answers

51 views

Enumeration of uniform polyhedra

asked Feb 21 at 19:26

0 votes

0 answers

735 views

Extensions of $\mathbb{Z}[\sqrt{-n}]$ that are UFD

asked Sep 12, 2017 at 12:50

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18 Questions

Number of matrices with given Smith normal form

Can the Repdigit 77...77 be the sum of two squares?

Why is 12 the smallest weight for which a cusp forms exists

Completion and algebraic closure

Error in integral in Gradshteyn Ryzhik

Is $699 \ldots 998$ value of the Euler totient function?

Determinant of block tridiagonal matrices

Polynomial ring operations on $\mathbb{Z}$

Primes of the form $p=x^2-ny^2$

Can $\exp(W(\sqrt{\ln(\sqrt{n})})$ be an integer?

Sum of two squares - Number of steps in Fermat descent

Equation in the Gaussian Integers

Algorithm for cliques in weighted graph

Source for equations involving congruences of Fibonacci and Lucas numbers

Values of the Kronecker symbol of recursive sequences

Product of elementary divisors

Enumeration of uniform polyhedra

Extensions of $\mathbb{Z}[\sqrt{-n}]$ that are UFD