From the 1 of 4 linked papers with an AI index.
4 papers
On the abscissas of a Dirichlet series and its subseries supported on prime factorization
Chaman Kumar Sahu
The paper studies the relationship between the abscissa of absolute convergence of a Dirichlet series and a related abscissa defined via subseries restricted by the greatest prime…
Unbounded Toeplitz operators and finite rank de Branges-Rovnyak spaces
Soumitra Ghara, MD Ramiz Reza, Chaman Kumar Sahu
Motivated by the recent developments of de Branges-Rovnyak spaces, we investigate the function theoretic aspects of finite rank de Branges-Rovnyak spaces generated by row-va…
Helson matrices induced by measures
Sameer Chavan, Chaman Kumar Sahu, Kalyan B. Sinha
We discuss the boundedness, Schatten-class properties and scattering theory of Helson matrices. We also discuss a class of Helson matrices induced by positive and signed measures.…
Nevanlinna-Pick interpolation in the right half-plane
Sameer Chavan, Chaman Kumar Sahu
The Szegö-Dirichlet kernel of the right half-plane is given by where denotes the Riema…