Combinatorial mathematics; proceedings of the second Australian conference

Coherent configurations and generalized polygons....Pages 1-5
Some thoughts oh the no-three-in-line problem....Pages 6-17
A moore-penrose inverse for boolean relation matrices....Pages 18-28
The stability index of graphs....Pages 29-52
Stability....Pages 53-55
An application of combinatorial techniques to a topological problem....Pages 56-60
Embeddings of projective planes....Pages 61-62
An Extension of kasteleyn\'s method of enumerating the 1-factors of planar graphs....Pages 63-72
A class of block designs having the same parameters as the design of points and lines in a projective 3-space....Pages 73-78
Counting stable trees....Pages 79-85
The Hamiltonian product of graphs....Pages 86-95
Derivable chains containing generalized hall planes....Pages 96-100
Characterisation of a pregeometry by its flats....Pages 101-104
Eulerian washing machines....Pages 105-108
Sum-free sets, difference sets and cyclotomy....Pages 109-124
Polyhedral decomposition of trivalent graphs....Pages 125-127
Graphs and block designs associated with the three-dimensional unitary groups....Pages 128-131
Williamson matrices of even order....Pages 132-142
Supersquares....Pages 143-148