Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:application |
gptkb:signal_processing
error-correcting codes |
| gptkbp:consistsOf |
four square matrices
|
| https://www.w3.org/2000/01/rdf-schema#label |
Williamson matrices
|
| gptkbp:introducedIn |
1944
|
| gptkbp:namedAfter |
gptkb:John_Williamson
|
| gptkbp:property |
matrices are of same order
matrices are symmetric matrices commute with each other matrices have entries +1 or -1 sum of squares equals 4nI, where n is order and I is identity matrix |
| gptkbp:relatedTo |
Hadamard matrices
orthogonal matrices |
| gptkbp:usedIn |
combinatorial design theory
Hadamard matrix construction |
| gptkbp:bfsParent |
gptkb:Edward_Nagle_Williamson
|
| gptkbp:bfsLayer |
7
|