. Let X be a Banach space over the complex field C, and suppose M is a closed subspace of X. Prove that if T:M + ((N) is
Posted: Thu May 12, 2022 9:41 am
. Let X be a Banach space over the complex field C, and suppose M is a closed subspace of X. Prove that if T:M + ((N) is a bounded linear operator, then there is a bounded linear extension S: X + (%(N) such that ||$|| = ||T||. (Recall that S is a linear extension of T from M to X if S(m) = T(m) for all m in M.) a =