Abstract
Blocking sets in symmetric BIBD's with λ⩾2 are defined and bounds for their sizes are found. Thus, some results known in projective planes are generalized to symmetric BIBD's.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bruen, A.A., Baer subplanes and blocking sets, Bull. Amer. Math. Soc.76 (1970), 342 - 344.
Bruen, A.A., Blocking sets in finite projective planes, SIAM J. Appl. Math.21 (1971), 380 - 392.
Bruen, A.A., Thas, J.A., Blocking sets, Geom. Dedicata6 (1977), 193 - 203.
de Resmini, M.J., Sugli insiemi a due caratteri nei BIBD con λ>1, Quaderni Sem. Geom. Comb. n. 29, September 1980, Ist. Mat. “G. Castelnuovo”, Univ. Roma.
de Resmini, M. J., On sets of type (m,n) in BIBD's with λ⩾2, to appear in Proc. Convegno C.I.R.M. “Strutture Combinatorie e loro Applicazioni”, Trento (Italy), Oct. 1980 (A. Barlotti ed.).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
de Resmini, M.J. On blocking sets in symmetric BIBD's with λ⩾2. J Geom 18, 194–198 (1982). https://doi.org/10.1007/BF01947651
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01947651