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A sharp exponent bound for McFarland difference sets with p=2.

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A sharp exponent bound for McFarland difference sets with p=2.

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Title: A sharp exponent bound for McFarland difference sets with p=2.
Author: Ma, Siu Lun.; Bernhard, Schmidt.
Copyright year: 1997
Abstract: We show that under the self-conjugacy condition a McFarland difference set with p=2 and f≥ in an abelian group G can only exist,if the exponent of the Sylow 2-subgroups does not exceed 4.The method also works for odd p(where the exponent bound is p and is necessary and sufficient),so that we obtain a unified proof of the exponent bounds for MacFarland difference sets.We also correct a mistake in the proof of an exponent bound for (320,88,24)-difference sets in a previous paper.
Subject: DRNTU::Science::Mathematics::Discrete mathematics::Combinatorics.
Type: Journal Article
Series/ Journal Title: Journal of combinatorial theory series A.
School: School of Physical and Mathematical Sciences
Rights: Journal of combinatorial theory series A © copyright 1997 Elsevier. The journal's website is located at http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WHS-45M2VN1-Y&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=3841d3c75767e278ab1ea79822038c24.
Version: Accepted version

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