Constrained positive deÖnite matrixes
But we should also check another determinant asn p=2. Deleting the
last row and last 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 the right sign for the minimum condition asp=1 and in the
minimum case there is no alternation.