Title
3-Homogeneous latin trades
Abstract
Let T be a partial latin square and L be a latin square with [email protected]?L. We say that T is a latin trade if there exists a partial latin square T^' with T^'@[email protected] such that ([email protected]?T)@?T^' is a latin square. A k-homogeneous latin trade is one which intersects each row, each column and each entry either 0 or k times. In this paper, we construct 3-homogeneous latin trades from hexagonal packings of the plane with circles. We show that 3-homogeneous latin trades of size 3m exist for each m>=3. This paper discusses existence results for latin trades and provides a glueing construction which is subsequently used to construct all latin trades of finite order greater than three.
Year
DOI
Venue
2005
10.1016/j.disc.2005.04.021
Discrete Mathematics
Keywords
Field
DocType
latin square,mathematics,circle packing
Discrete mathematics,Combinatorics,Homogeneous,Hexagonal crystal system,Latin square,Circle packing,Mathematics
Journal
Volume
Issue
ISSN
300
1-3
Discrete Mathematics
Citations 
PageRank 
References 
5
0.68
5
Authors
3
Name
Order
Citations
PageRank
Nicholas J. Cavenagh19220.89
Diane Donovan27233.88
Aleš Drápal33512.73