Marcel K. Goh

collaborators

3 papers

math.CA2025

Block structure in boolean matrices of bounded factorization norm

Marcel K. Goh, Hamed Hatami

A boolean matrix is blocky if its $1$ -entries form a collection of 1-monochromatic submatrices that are disjoint in both rows and columns. Blocky matrices are precisely the set of…

math.CA2025

Block complexity and idempotent Schur multipliers

Marcel K. Goh, Hamed Hatami

We call a matrix blocky if, up to row and column permutations, it can be obtained from an identity matrix by repeatedly applying one of the following operations: duplicating a row,…

math.CO2020

Arithmetic subsequences in a random ordering of an additive set

Marcel K. Goh, Rosie Y. Zhao

For a finite set $A$ of size $n$ , an ordering is an injection from ${1, 2, \dots, n}$ to $A$ . We present results concerning the asymptotic properties of the length $L_{n}$ of the lon…