Bruck-Chowla-Ryser theorem
The Bruck-Chowla-Ryser theorem is a result on the combinatorics of designs. It states that if a (v; k; )-
design exists, then:
- k − is a square,
when v is even; and the diophantine equation
- x2 − (k − )y2 − (−1)(v−1)/2 = z2
has a nontrivial solution, when v is odd.
Referenced By
List of combinatorics topics | Sarvadaman Chowla
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