Shagwila, Victor; Okelo, N. B.; Obogi, Robert; Cyprian, O. S.
(2019-05)
In the present paper, we introduce and study the concept of norms of derivations, in particular norm estimates of derivations implemented by self-adjoint operators. We show that kδC k = kCX −XCk ≤ 2kCk, for inner derivation ...