2 problems

Let ${\cal H}$ be a Hilbert space, let $\Phi=(\varphi_n)$ and $\Psi=(\psi_n)$ be sequences in ${\cal H}$, and let $m=(m_n)$ be a complex sequence. The multiplier $M_{m,\Phi,\Psi}$…

Let $\Omega$ be a domain, let $B(\Omega)$ be a Banach space of holomorphic functions on $\Omega$, and let $\mathcal{M}(B(\Omega))$ denote its algebra of multipliers. Multiplier rec…