“School of Mathematics”
Back to Papers HomeBack to Papers of School of Mathematics
| Paper IPM / M / 153 |
|
||||||
| Abstract: | |||||||
|
Variations of the trade-off method exist in the literature of
design theory and have been utilized by some authors to produce
some t-designs with or without repeated blocks. In this paper we
explore a new version of this algorithmic method (i) to produce 20
nonisomorphic and rigid 4-(12,5,4) designs, (ii) to study the
spectrum of support sizes of 4-(12,5,4) designs. Along these,
we also present a new design invariant for testing isomorphism
among designs and a new way of representing t-designs.
Download TeX format |
|||||||
| back to top | |||||||
