3 papers
math.CO2026
Local and Global Spectral Bounds for Hermitian -Matrices
Ravinder Kumar, Amisha Shekhawat
We establish local and global spectral bounds for Hermitian -matrices of mixed graphs. Using the first three spectral moments, we obtain an upper bound for the largest eigenva…
math.FA2024
On operators preserving inequalities between polynomials
S. Gulzar, Ravinder Kumar, Mudassir A Bhat
In this review paper, we explore operator aspects in extremal properties of Bernstein-type polynomial inequalities. We shall also see that a linear operator which send polynomials…
math.FA2012
Infinite Dimensional Bicomplex Spectral Decomposition Theorem
Kuldeep Singh Charak, Ravinder Kumar, Dominic Rochon
This paper presents a bicomplex version of the Spectral Decomposition Theorem on infinite dimensional bicomplex Hilbert spaces. In the process, the ideas of bounded linear operator…