File:Z2^4; Lattice of subgroups Hasse diagram adjacency matrix.svg

67x67 matrix, showing the finer than relation between the partitions shown in File:Boolean partition matrices.svg.

This matrix shows the same relation as File:Boolean partition lattice 4.svg, but the elements are rearranged in a different order, according to their digit sum and according to some kind of duality between the elements.

In the top right corner the following matrix is shown:

This matrix is nearly symmetrical to the subdiagonal. Apart from the centered rows and columns 56, 53, 54 (slightly shaded in gray) it is symmetrical to the subdiagonal. With only one of these shaded rows and columns it's still symmetrical.

The file is shown at the end of this page.

 

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Watchduck You can name the author as "T. Piesk", "Tilman Piesk" or "Watchduck".

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