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On Matricial Ranges of Some Matrices
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نویسنده
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dehghani mahdi ,kian mohsen
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منبع
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journal of mathematical extension - 2019 - دوره : 13 - شماره : 1 - صفحه:83 -102
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چکیده
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The matricial ranges of 2 × 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 × 3 matrices. various examples are given as well.
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کلیدواژه
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Numerical range ,matricial range ,completely positive mapping ,elliptical range theorem ,Stinespring’s theorem
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آدرس
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university of kashan, faculty of mathematical sciences, department of pure mathematics, iran, university of bojnord, faculty of basic sciences, department of mathematics, iran
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پست الکترونیکی
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kian@ub.ac.ir; kian tak@yahoo.com
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Authors
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