C. Sahu

activity

20212026

collaborators

Showing 2025Show all

3 papers · 1 filter

math.FA2025

Multiplier varieties and multiplier algebras of CNP Dirichlet series kernels

Hamidul Ahmed, B. Krishna Das, Chaman Kumar Sahu

We investigate isometric and algebraic isomorphism problems for multiplier algebras associated with Dirichlet series kernels that possess the complete Nevanlinna-Pick (CNP) propert…

math.FA2025

Nevanlinna-Pick interpolation in the right half-plane

Sameer Chavan, Chaman Kumar Sahu

The Szegö-Dirichlet kernel of the right half-plane $H_{1/2}$ is given by $ϰ (s, u) = ζ (s + u),$ $s, u \in H_{1/2},$ where $ζ$ denotes the Riemann…

math.NT2025

On the abscissas of a Dirichlet series and its subseries supported on prime factorization

Chaman Kumar Sahu

For a sequence ${a_{n}}_{n \geq 1} \subseteq (0, \infty)$ and a Dirichlet series $f (s) = \sum_{n = 1}^{\infty} a_{n} n^{- s},$ let $σ_{a} (f)$ denote the abscissa of absolute convergence of…