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Avoiding partial Latin squares and intricacy.

Chetwynd, Amanda G. and Rhodes, Susan J. (1997) Avoiding partial Latin squares and intricacy. Discrete Mathematics, 177 (1-3). pp. 17-32. ISSN 0012-365X

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Abstract

In this paper we consider the following problem: Given a partial n × n latin square P on symbols 1, 2,…, n, is it possible to find an n × n latin square L on the same symbols which differs from P in every cell? In other words, is P avoidable? We show that all 2k × 2k partial latin squares for k 2 are avoidable and give some results on odd partial latin squares. We also use these results to show that the intricacy of avoiding partial latin squares is two and of avoiding more general arrays is at most three.

Item Type: Article
Journal or Publication Title: Discrete Mathematics
Subjects: Q Science > QA Mathematics
Departments: Faculty of Science and Technology > Mathematics and Statistics
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ID Code: 20951
Deposited By: Prof Amanda Chetwynd
Deposited On: 05 Dec 2008 08:53
Refereed?: No
Published?: Published
Last Modified: 26 Jul 2012 15:42
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/20951

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