arXiv subjects

K Krishnan

Publications and source records attributed to K Krishnan.

2 recordsLinked to original sources

arXiv2026

Quaternionic Quantum q-Oscillator And Unbounded Subnormal Operators In Quantum Economics

In this note, we observe that the class of unbounded subnormal operators on quaternionic Hilbert spaces is a solution of quaternionic quantum harmonic q-oscillator whose complex case is addressed by Szefraniec in [19]. We also address the connection of unbounded subnormal operators on quaternionic Hilbert spaces, quaternionic quantum harmonic q-oscillator and quaternionic quantum economics using model theory of unbounded subnormal operators.

math.FA↗

arXiv2025

Some Classes of Absolutely Norm Attaining Weighted Shift operators on Directed Graphs

In this paper we study absolutely norm attaining quasi-$\ast$-paranormal weighted shifts on directed graphs and give some examples. Moreover we give some examples which show that the spectrum of a positive absolutely norm attaining operator containing more than one eigenvalue with infinite multiplicity. Later we investigate weighted composition and Lambert operators on directed graphs.

math.FA↗