Bounds for zeros of a polynomial using numerical radius of Hilbertian space operators Article Swipe
Related Concepts
Polynomial
RADIUS
Mathematics
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Mathematical analysis
Pure mathematics
Computer science
Operating system
Computer security
Pintu Bhunia
,
Santanu Bag
,
Kallol Paul
·
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.1906.07363
· OA: W3087780984
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.1906.07363
· OA: W3087780984
We obtain bounds for the numerical radius of $2 \times 2$ operator matrices which improve on the existing bounds. We also show that the inequalities obtained here generalize the existing ones. As an application of the results obtained here we estimate the bounds for the zeros of a monic polynomial and illustrate with numerical examples that the bounds are better than the existing ones.
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