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Completing Partial Latin Squares with Blocks of Non-empty Cells
Journal article   Peer reviewed

Completing Partial Latin Squares with Blocks of Non-empty Cells

Jaromy Kuhl and Michael W. Schroeder
Graphs and combinatorics, Vol.32(1), pp.241-256
01/01/2016
Web of Science ID: WOS:000367333000018

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Abstract

In this paper we develop two methods for completing partial latin squares and prove the following. Let be a partial latin square of order in which all non-empty cells occur in at most squares. If are positive integers for which and if is the union of subsquares each with order , then can be completed. We additionally show that if and is the union of identical squares with disjoint rows and columns, then can be completed. For smaller values of we show that a completion does not always exist.

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