International Journal of Mathematics and Mathematical Sciences
Volume 14 (1991), Issue 4, Pages 813-814
doi:10.1155/S0161171291001096
On multiparameter spectral theory
Lokenath Debnath
and Ram Verma
Department of Mathematics, University of Central Florida, Orlando 32816, FL, USA
Abstract
A connection between the numerical range of the multipararneter linear system P(λ) and the joint numerical range of the (commuting) separating operator system is given.