List questions from finite-geometry | MathQA

Finding a bound for the number of cards in a deck

Published on 25 Mar 2026 - 13:59

A $\bmod p$ version of the Frobenius coin problem.

Published on 25 Mar 2026 - 13:54

Lower bound of the Turan number $ex(n,C_4)$.

Published on 25 Mar 2026 - 13:57

Common divisor of Gaussian coefficient expressions

Published on 25 Mar 2026 - 13:53

How many ways to arrange $n$ points in $(\Bbb F_q)^2$ with no three collinear?

Published on 25 Mar 2026 - 13:56

Conditions for realizability of finite incidence structures in Euclidean plane

Published on 12 Apr 2026 - 0:09

Does every two-set partition of a projective plane contain a line?

Published on 25 Mar 2026 - 13:55

Are there ${n^2+n+1}_{n+1}$ configurations that are not projective planes?

Published on 25 Mar 2026 - 13:55

Are there parameters such that a combinatorial $(n_s,m_t)$ configuration does not exist?

Published on 25 Mar 2026 - 13:54