Contents
Preface
List of Contributors
List of Participants
A Note on Hamilton Cycles in Block-Intersection Graphs
B. ALSPACH,
K.
HEINRICH, AND B. MOHAR
All Dicyclic Groups of Order at Least Twelve Have Symmetric
Sequencings
B. A. ANDERSON
Concerning Pairwise Balanced Designs With Prime Power Block Sizes
xiii
XV
XVll
5
F. E.
BENNETT
23
On the p-Rank of Incidence Matrices and a Question of E.S. Lander
A.A.BRUEN AND U.OTT
39
On the Dempwolff Plane
M. J. DE RESMINI
Difference Sets in 2-Groups
J.
F.
DILLON
On the Existence of Room Squares with Subsquares
J. H. DINITZ AND D. R. STINSON
A Bound for Blocking Sets in Finite Projective Planes
D. A. DRAKE
Sets With More Than One Representation as an Algebraic Curve of
Degree Three
J.
W. P.
HIRSCHFELD AND J.
A.
THAS
Flocks and Partial Flocks of Quadric Sets
N.
L.
JOHNSON
XI
47
65
73
93
99
111
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