Numerical radius inequalities for finite sums of operators

• Autorzy: Mirmostafaee A. K. , Rahpeyma O. P. , Omidvar M. E.
• Języki publikacji: EN

Abstrakty

EN

In this paper, we obtain some sharp inequalities for numerical radius of finite sums of operators. Moreover, we give some applications of our result in estimation of spectral radius. We also compare our results with some known results.

Słowa kluczowe

EN

numerical radius; spectral radius; norm inequality

PL

promień numeryczny; promień spektralny; norma nierówności

• Wydawca: De Gruyter
• Czasopismo: Demonstratio Mathematica
• Rocznik: 2014
• Tom: Vol. 47, nr 4
• Strony: 963--970
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Mirmostafaee A. K.

• Center of Excellence in Analysis on Algebraic Structures, Department of Pure Mathematics, Ferdowsi University Of Mashhad, P. O. Box 1159, Mashhad 91775, Mashhad, Iran

autor

Rahpeyma O. P.

• Center of Excellence in Analysis on Algebraic Structures, Department of Pure Mathematics, Ferdowsi University Of Mashhad, P. O. Box 1159, Mashhad 91775, Mashhad, Iran

autor

Omidvar M. E.

• Department of Mathematics, Faculty of Science, Mashhad Branch Islamic Azad University, Mashhad, Iran

Bibliografia

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