Donald beverly Giles

5 Questions 20 Answers 0 Followers

Questions related from Donald beverly Giles

Spin - could you provide some clarification?

I always thought that the sum of angular momentum should be zero. I am wondering if this applies on a sub-atomic scale as well as a macroscopic scale.

06 March 2014 5,612 3 View

Is there any interest in a very different spreadsheet algorithm for generating incidence matrices of projective planes?

I have devised an algorithm for generating the incidence matrices of projective geometries not shown in traditional texts. Will include as an attachment. This design is self dual and relies on the...

06 March 2014 202 0 View

In terms of combinatorics, could (6677,333,166) be cyclical on the torus?

Would like to know if (6677,333,166) could be cyclical on the torus.

21 February 2014 4,732 1 View

Square Root of a Symmetric Matrices

The square root of a 31 by 31 matrix with 6"s down the main diagonal and 1"s elsewhere is a symmetric binary matrix with six 1's in each row and column. If someone has an algorithm for this square...

20 July 2012 3,076 25 View

Incidence matrices for symmetric block designs.

I am interested in proving that the incidence matrix M for any symmetric balanced incomplete block design can be written in a manner where M equals M transpose. If so then the incidence matrix...

15 July 2012 4,882 9 View