arXiv subjects

L. Z. Gevorgyan

Publications and source records attributed to L. Z. Gevorgyan.

2 recordsLinked to original sources

arXiv2015

An intrinsic characterization of semi-normal operators

Two necessary and sufficient conditions for an operator to be semi-normal are revealed. For a Volterra integration operator the set where the operator and its adjoint are metrically equal is described.

math.SP↗

arXiv2014

On the numerical radii of $2\times2$ complex matrices

The numerical radius of the general $2\times2$ complex matrix is calculated.

math.SP↗