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0 answers
2 views

High-proba lower bound for $\prod_i \sum_{j\in G_i} y_j$, where the $G_i$'s are partition of $[n]$ with equal sizes, and the $y_j$'s are iid Bernoulli

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0 answers
3 views

Strongly/distance regular graphs over $\mathbb{Z}_2^n$ with the same parameters

5 votes
0 answers
37 views

Does the map $\mathrm{SL}(n,\mathbb{Z}/p^2) \rightarrow \mathrm{SL}(n,\mathbb{Z}/p)$ split?

4 votes
0 answers
227 views

Generalization of de Rham cohomology, or cohomology for non-smooth case

-2 votes
0 answers
38 views

How to regularize the sum over all integer factorials

0 votes
2 answers
56 views

Integer solutions of system of inequalities

1 vote
0 answers
10 views

Sigma-weakly dense *-subalgebra of von Neumann algebra has increasing net of positive elements convergent to the identity

0 votes
0 answers
8 views

Find specific solutions for underdetermined system of equations

51 votes
3 answers
3k views

The view from inside of a mirrored tetrahedron

9 votes
3 answers
771 views

Dehn's solution to Hilbert's 3rd: 1901 or 1902?

1 vote
0 answers
23 views

Big Triples in a Matrix

2 votes
0 answers
132 views

Sweeping out the disk: what comes out?

6 votes
3 answers
251 views

How can one construct a four-coloring of a tiling of the plane with Smith, Meyers, Kaplan, and Goodman-Strauss's aperiodic monotile?

4 votes
2 answers
548 views

What work can be done to study the solutions of $\varphi\left(x^{\sigma(x)}\sigma(x)^x\right)=2^{x-1} x^{3x-1}\varphi(x)$?

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