## Abstract Latin square type partial difference sets (PDS) are known to exist in __R__ ร __R__ for various abelian __p__โgroups __R__ and in โค^__t__^. We construct a family of Latin square type PDS in โค^__t__^ ร โค^2__nt__^~__p__~ using finite commutative chain rings. When __t__ is odd, the ambient
Asymptotic Nonexistence of Difference Sets in Dihedral Groups
โ Scribed by Ka Hin Leung; Bernhard Schmidt
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 190 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0097-3165
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โฆ Synopsis
We prove that for any primes p 1 ; . . . ; p s there are only finitely many numbers Q s iยผ1 p ai i ; a i 2 Z รพ ; which can be orders of dihedral difference sets. We show that, with the possible exception of n ยผ 540; 225; there is no difference set of order n with 15n410 6 in any dihedral group.
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