R. Brualdi

activity

20102021

most citedPattern-Avoiding (0,1)-Matrices

8 citations · 10 across the 10 of their papers we have counts for

collaborators

Showing 2021Show all

3 papers · 1 filter

math.CO2021

Sign-restricted matrices of $0$ 's, $1$ 's, and $- 1$ 's

Richard A. Brualdi, Geir Dahl

We study {\em sign-restricted matrices} (SRMs), a class of rectangular $(0, \pm 1)$ -matrices generalizing the alternating sign matrices (ASMs). In an SRM each partial column sum, s…

math.CO2021

Convex $(0, 1)$ -Matrices and Their Epitopes

Richard A. Brualdi, Geir Dahl

We investigate $(0, 1)$ -matrices that are {\em convex}, which means that the ones are consecutive in every row and column. These matrices occur in discrete tomography. The notion of…

math.CO2021

Diagonal Sums of Doubly Stochastic Matrices

Richard A. Brualdi, Geir Dahl

Let $Ω_{n}$ denote the class of $n \times n$ doubly stochastic matrices (each such matrix is entrywise nonnegative and every row and column sum is 1). We study the diagonals of matri…

Sign-restricted matrices of 0's, 1's, and −1's

Convex (0,1)-Matrices and Their Epitopes

Diagonal Sums of Doubly Stochastic Matrices

Sign-restricted matrices of $0$ 's, $1$ 's, and $- 1$ 's

Convex $(0, 1)$ -Matrices and Their Epitopes