New Hadamard matrix of order 24
This paper completes the \textit{N. Ito, J. S. Leon} and \textit{J. Q. Longyear}, ``Classification of 3-(24,12,5) designs and 24-dimensional Hadamard matrices'', J. Comb. Theory, Ser. A 31, 66-93 (1981; Zbl 0477.05019). It was previously thought there were 59 inequivalence classes of Hadamard matrices of order 24. The present author's work shows that there are exactly 60 inequivalence classes for Hadamard matrices of order 24.
scientific article; zbMATH DE number 4135959