๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Asymptotic Nonexistence of Difference Sets in Dihedral Groups

โœ Scribed by Ka Hin Leung; Bernhard Schmidt


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
190 KB
Volume
99
Category
Article
ISSN
0097-3165

No coin nor oath required. For personal study only.

โœฆ 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.


๐Ÿ“œ SIMILAR VOLUMES


New partial difference sets in p-groups
โœ Xiang-Dong Hou ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 110 KB

## Abstract Latin square type partial difference sets (PDS) are known to exist in __R__ ร— __R__ for various abelian __p__โ€groups __R__ and in โ„ค^__t__^. We construct a family of Latin square type PDS in โ„ค^__t__^ ร— โ„ค^2__nt__^~__p__~ using finite commutative chain rings. When __t__ is odd, the ambient

New difference sets in nonabelian groups
โœ Anka Golemac; Tanja Vuฤiฤiฤ‡ ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 126 KB

## Abstract In two groups of order 100 new difference sets are constructed. The existence of a difference set in one of them has not been known. The correspondence between a (100, 45, 20) symmetric design having regular automorphism group and a difference set with the same parameters has been used

Hadamard Difference Sets in Nonabelian 2
โœ James A Davis; Joel E Iiams ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 277 KB

Nontrivial difference sets in groups of order a power of 2 are part of the family of difference sets called Hadamard difference sets. In the abelian case, a group of order 2 2 tq2 has a difference set if and only if the exponent of the group is less tq 2 ลฝ than or equal to 2 . In a previous work R.

Relative difference sets, graphs and ine
โœ K. J. Horadam ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 154 KB

## Abstract For cryptographic purposes, we want to find functions with both low differential uniformity and dissimilarity to all linear functions and to know when such functions are essentially different. For vectorial Boolean functions, extended affine equivalence and the coarser Carletโ€“Charpinโ€“Zi

Application of Gaschรผtz' Theorem to rela
โœ John C. Galati ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 80 KB

## Abstract Let __G__ be a finite group other than โ„ค~4~ and suppose that __G__ contains a semiregular relative difference set (RDS) relative to a central subgroup __U__. We apply Gaschรผtz' Theorem from finite group theory to show that if __G__/__U__ has cyclic Sylow subgroups for each prime divisor