Title
On the chromatic index of Latin squares.
Abstract
A proper coloring of a Latin square of order n is an assignment of colors to its elements triples such that each row, column and symbol is assigned n distinct colors. Equivalently, a proper coloring of a Latin square is a partition into partial transversals. The chromatic index of a Latin square is the least number of colors needed for a proper coloring. We study the chromatic index of the cyclic Latin square which arises from the addition table for the integers modulo n. We obtain the best possible bounds except for the case when n/2 is odd and divisible by 3. We make some conjectures about the chromatic index, suggesting a generalization of Ryser's conjecture (that every Latin square of odd order contains a transversal).
Year
Venue
Keywords
2015
CONTRIBUTIONS TO DISCRETE MATHEMATICS
Latin square,chromatic index,Ryser's conjecture,transversal,partial transversal
Field
DocType
Volume
Integer,Discrete mathematics,Edge coloring,Complete coloring,Combinatorics,Modulo,Latin square property,Latin square,Transversal (geometry),Partition (number theory),Mathematics
Journal
10
Issue
ISSN
Citations 
2
1715-0868
1
PageRank 
References 
Authors
0.37
1
2
Name
Order
Citations
PageRank
Nicholas J. Cavenagh19220.89
Jaromy Kuhl2104.72