Difference families, skew Hadamard matrices, and Critical groups of doubly regular tournaments

In this paper we investigate the structure of the critical groups of doubly regular tournaments (DRTs) associated with skew Hadamard difference families (SDFs) with one, two, or four blocks. Brown and Reid found the existence of a skew Hadamard matrix of order $n+1$ to be equivalent to the existence...

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Bibliographische Detailangaben

1. Verfasser:	Pantangi, Venkata Raghu Tej
Format:	Artikel
Sprache:	eng
Schlagworte:	Mathematics - Combinatorics Mathematics - Group Theory Mathematics - Representation Theory
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