𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A symmetric BIBD with trivial automorphism group

✍ Scribed by John Wesley Brown; E.T Parker

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
382 KB
Volume
40
Category
Article
ISSN
0097-3165

No coin nor oath required. For personal study only.

πŸ“œ SIMILAR VOLUMES

Graphs with symmetric automorphism group
Graphs with symmetric automorphism group
✍ W. D. Wallis; Katherine Heinrich πŸ“‚ Article πŸ“… 1978 πŸ› John Wiley and Sons 🌐 English βš– 333 KB

## Abstract We investigate the properties of graphs whose automorphism group is the symmetric group. In particular, we characterize graphs on less than 2__n__ points with group __S~n~__, and construct all graphs on __n__ + 3 points with group __S~n~__. Graphs with 2__n__ or more points and group __

Simple Non-trivial Designs with an Arbit
Simple Non-trivial Designs with an Arbitrary Automorphism Group
✍ Ngo Dac Tuan πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 92 KB

We give a new recursive construction of simple non-trivial designs. Using this construction, we show that given a natural number t and a finite group G; a simple non-trivial t-design admitting an automorphism group isomorphic to G exists. Further, we apply our construction to get a recursive constru

The Pure Symmetric Automorphisms of a Fr
The Pure Symmetric Automorphisms of a Free Group Form a Duality Group
✍ Noel Brady; Jon McCammond; John Meier; Andy Miller πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 177 KB

The pure symmetric automorphism group of a finitely generated free group consists of those automorphisms which send each standard generator to a conjugate of itself. We prove that these groups are duality groups.