Permutation, Pattern-avoiding, 123-avoiding, 312-avoiding, (0, 1)-matrices
We investigate pattern-avoiding (0,1)-matrices as generalizations of pattern-avoiding permutations. Our emphasis is on 123-avoiding and 321-avoiding patterns for which we obtain exact results as to the maximum number of 1's such matrices can have. We also give algorithms when carried out in all possible ways, construct all of the pattern-avoiding matrices of these two types.
Brualdi, Richard and Cao, Lei, "Pattern-Avoiding (0,1)-Matrices" (2020). Mathematics Faculty Articles. 298.