4 ms·
No, you are confusing with involution. 1/x is an involution. Symetries are often involutions. Squaring a upper triangular matrix with 0 on the diagonal is nilp
by carreau 6y ago
No, you are confusing with involution. 1/x is an involution. Symetries are often involutions.
Squaring a upper triangular matrix with 0 on the diagonal is nilpotent. Derivatiting a polynomial of degree N is nilpotent after N iteration.