Ausgabe 1-3/2007
Special Issue Dedicated to Dan Hughes for his 80th Birthday, Guest Editors: Dina Ghinelli, James Hirschfeld and Dieter Jungnickel
Inhalt (29 Artikel)
Pseudo-Paley graphs and skew Hadamard difference sets from presemifields
Guobiao Weng, Weisheng Qiu, Zeying Wang, Qing Xiang
On the Hughes–Kleinfeld and Knuth’s semifields two-dimensional over a weak nucleus
Simeon Ball, Michel Lavrauw
Translation planes of order q 2 admitting a two-transitive orbit of length q + 1 on the line at infinity
M. Biliotti, V. Jha, N. L. Johnson, A. Montinaro
On the nonexistence of certain Hughes generalized quadrangles
Joris De Kaey, Alan Offer, Hendrik Van Maldeghem
A lower bound for the minimum weight of the dual 7-ary code of a projective plane of order 49
Jennifer D. Key, Fidele F. Ngwane
A rank six geometry related to the McLaughlin sporadic simple group
Francis Buekenhout, Dimitri Leemans
Characterization results on small blocking sets of the polar spaces Q +(2n + 1, 2) and Q +(2n + 1, 3)
J. De Beule, K. Metsch, L. Storme
Finite structures with prescribed numbers of orbits of their automorphism group
Anne Delandtsheer, Jean Doyen
Planar polynomials for commutative semifields with specified nuclei
Robert S. Coulter, Marie Henderson, Pamela Kosick
Open Access
On 3-chromatic distance-regular graphs
Aart Blokhuis, Andries E. Brouwer, Willem H. Haemers
Abelian difference sets of order n dividing λ
K. T. Arasu, Yu Qing Chen, J. F. Dillon, Xiaoyu Liu, Kevin J. Player