Ratio of |Det R| to Ehlich/Wojtas bound: 1

M=R^{T}R=R R^{T}:

| S 0 | M = | | | 0 S |with S = 80 I + 2 J where I is the 41×41 identity matrix and J is the 41×41 matrix with all entries 1.

Notes:

- A maximal matrix can be derived from the maximal matrix of order 41.
- The first circulant block construction was found by Cohn [C1].
- Four circulant block matrices are listed on Jennifer Seberry's D-optimal design page.
- Are there other inequivalent matrices?

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Page created 28 May 2003.

Last modified 28 May 2003.

Comments: maxdet@indiana.edu