𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Pólya enumeration of expansions of resolvable incidence structures

✍ Scribed by Dieter Schäfer; Karl Erich Wolff

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
767 KB
Volume
43
Category
Article
ISSN
0012-365X

No coin nor oath required. For personal study only.

✦ Synopsis

It is shov: n FOP p he number of 'true-isomorphism' classes of expansion of a resolvable inciden,:e 9;ti Mu SQ~r< ttj another incidence structure ('at infinity') can be expressed in terms of the cycle inkiiiiz:. "1 ';!r; automorphism groups of the incidence structures. As an example all expansloo::., . ,' ~:::~~I divisible design (with three parallelisms) to another divisible design are deten&&

📜 SIMILAR VOLUMES

Enumeration of resolvable 2-(10, 5, 16)
Enumeration of resolvable 2-(10, 5, 16) and 3-(10, 5, 6) designs
✍ Luis B. Morales; Carlos Velarde 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 207 KB

## Abstract A backtracking over parallel classes with a partial isomorph rejection (PIR) is carried out to enumerate the resolvable 2‐(10,5,16) designs. Computational results show that the inclusion of PIR reduce substantially the CPU time for the enumeration of all designs. We prove first some res