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	<title>Sequenceable Groups and Related Topics | Ollis | The Electronic Journal of Combinatorics</title>
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	<meta name="DC.Creator.PersonalName" content="M. A. Ollis"/>
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	<meta name="DC.Description" xml:lang="en" content="In 1980, about 20 years after sequenceable groups were introduced by Gordon to construct row-complete latin squares, Keedwell published a survey of all the available results concerning sequencings. This was updated (jointly with Dénes) in 1991 and a short overview, including results about complete mappings and R-sequencings, was given in the CRC Handbook of Combinatorial Designs in 1995. In Sections 1 and 2 we give a survey of the current situation concerning sequencings. In Section 3 we consider some concepts closely related to sequenceable groups: terraces, R-sequencings, super sequenceable groups (also known as super P-groups) and the Gordon game. We also look at constructions for row-complete latin squares that do not use sequencings.  "/>
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