3 papers
math.CO2019
Thirty-six Officers and their Code
Harold N. Ward
This note presents a short proof of Euler's 36 officer conjecture. This implies that there is no affine plane of order , but we also give a direct proof.
math.RT2017
Matrices for the Weil representation
Harold N. Ward
These notes contain a revisit to the matrix construction of the Weil representation by the author in the Journal of Algebra in 1972.
math.CO2010
Fibonacci Designs
Harold N. Ward
A Metis design is one for which v=r+k+1. This paper deals with Metis designs that are quasi-residual. The parameters of such designs and the corresponding symmetric designs can be…