Elsevier

Discrete Mathematics

Volume 133, Issues 1–3, 15 October 1994, Pages 285-289
Discrete Mathematics

Note
Concerning difference families with block size four

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Abstract

A direct construction is given for a cyclic difference family of (4pn,4,1)-design for all p≡13 (mod24) and n⩾0. This corrects in part a construction due to Mathon for prime orders, and extends the construction to prime powers.

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