1957/01/01 by H. J. Ryser · 6 citations
Engineering · Computer Science · #graph theory and CDMA systems #Digital Image Processing Techniques #Graph Labeling and Dimension Problems
paper · pdf · doi:10.4153/cjm-1957-044-3
This paper is concerned with a matrix A of m rows and n columns, all of whose entries are 0's and l's. Let the sum of row i of A be denoted by r i (i = 1, … , m ) and let the sum of column i of A be denoted by s i ( i = 1, … , n ).