Composition operators and Dirichlet series are central topics within functional analysis that bridge operator theory, analytic number theory and complex analysis. At their core, composition operators ...

Taiwanese Journal of Mathematics, Vol. 18, No. 1 (February 2014), pp. 277-283 (7 pages) Abstract In this paper, we obtain a necessary and sufficient condition for boundedness of composition operator ...

For an arbitrary Hilbert space 𝓔, the Segal–Bargmann space 𝓗(𝓔) is the reproducing kernel Hilbert space associated with the kernel K(x, y) = exp(〈x, y〉) for x, y in 𝓔. If φ : 𝓔₁ → 𝓔₂ is a ...