Results 81 to 90 of about 816 (94)

The higher rank numerical range of nonnegative matrices

open access: yesOpen Mathematics, 2013
Aretaki Aikaterini, Maroulas Ioannis
doaj   +1 more source

An envelope for the spectrum of a matrix

open access: yesOpen Mathematics, 2012
Psarrakos Panayiotis   +1 more
doaj   +1 more source
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Extended of Legendre matrix polynomials of two complex variables

, 2021
The main aim of this paper is to obtain some recurrence relations for Legendre matrix polynomials of two complex variables by acting of different some differential operators. Special cases of new results are also given here as applications.
M. Makky
semanticscholar   +1 more source

On congruent circulant matrices

Sciences des Structures et de la Matiere
In this work, we investigate congruent circulant matrices and provide a parametrization of congruent matrices in M2(Q). We introduce a matrix analogue of Fermat’s algorithm, which enables the construction of sequences of matrix Pythagorean triples ...
V. K. Kouakou, F. E. Tanoé, P. Kimou
semanticscholar   +1 more source

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