

A334457


Block sizes k of nontrivial biplanes.


1




OFFSET

1,1


COMMENTS

A biplane is an incidence structure consisting of a set P of h points and a set of h blocks, each of which is an ksubset of P (block size k), such that every pair of points lies in exactly 2 blocks (see Alavi et al.).


LINKS

Seyed Hassan Alavi, Ashraf Daneshkhah, Cheryl E Praeger, Symmetries of biplanes, arXiv:2004.04535 [math.GR], 2020. See Introduction p. 1.


CROSSREFS



KEYWORD

nonn,more


AUTHOR



STATUS

approved



