Prefer a chat interface with context about you and your work?
Norm of a linear combination of two operators on a Hilbert space
Let α, β γ, δ be complex numbers such that γδ ≠ 0. If A and B are bounded linear operators on the Hilbert space H such that γ A + δ B is right invertible then we study the operator norm of (α A + β B )(γ A …