A. Sali

activity

20232026

collaborators

Showing 2025Show all

2 papers · 1 filter

math.CO2025

Forbidden Configurations and Boundary Cases

Richard P. Anstee, Oakley Edens, Arvin Sahami +1

Let $F$ be a $k \times ℓ$ (0,1)-matrix. Define a (0,1)-matrix $A$ to have a $F$ as a \emph{configuration} if there is a submatrix of $A$ which is a row and column permutation of…

math.CO2025

Multivalued forbidden numbers of two-rowed configurations -- the missing cases

Wallace Peaslee, Attila Sali, Jun Yan

The present paper considers extremal combinatorics questions in the language of matrices. An $s$ -matrix is a matrix with entries in ${0, 1, \dots, s - 1}$ . An $s$ -matrix is simple i…