On matricial ranges of some matrices

AuthorsM. Dehghani, M. Kian
JournalJ. Math. Ext.
Page number83-102
Serial number1
Volume number13
Paper TypeOriginal Research
Published At2019-06-20
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexISI

Abstract

The matricial ranges of $2\times 2$ complex matrices are revisited‎. ‎Moreover‎, ‎using the standard block-matrix techniques‎, ‎we‎ ‎describe matricial ranges of some special non-quadratic higher order matrices‎. ‎Finally‎, ‎we obtain the matricial ranges of some specific $3\times 3$ matrices‎. ‎Various examples are given as‎ ‎well‎.

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