Constrained positive deÖnite matrixes
But we should also check another determinant asn p=2. Deleting the
last row and columndet0
@
0 2 /
p
3 2 /p
3
2 /p
3 . 1 /p
3 1/p
3
2 /p
3 1/p
3 1 /p
31
A=^16
9
p
3Which is still good for the maximum as the sign is alternating.