Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:category |
unsolved problems in mathematics
|
| gptkbp:field |
gptkb:mathematics
combinatorics matrix theory |
| https://www.w3.org/2000/01/rdf-schema#label |
Hadamard conjecture
|
| gptkbp:namedAfter |
gptkb:Jacques_Hadamard
|
| gptkbp:relatedTo |
gptkb:Hadamard_matrix
combinatorics orthogonal group |
| gptkbp:sentence |
A Hadamard matrix of order n exists for every positive integer n that is a multiple of 4.
|
| gptkbp:statedIn |
1893
|
| gptkbp:status |
open
|
| gptkbp:bfsParent |
gptkb:Jacques_Hadamard
|
| gptkbp:bfsLayer |
6
|