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In this paper, we obtain the annuli that contain all the zeros of the polynomial p(z) = a 0 + a 1 z + a 2 z 2 + · · · + a n z n , where a i 's are complex coefficients and z is a complex variable. Our results sharpen some of the recently obtained results in this direction. Also, we develop a MATLAB code to show that for some polynomials the bounds obtained(More)
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Recently Dalal and Govil [5] proved that, for any set of positive numbers {A k } n k=1 such that n k=1 A k = 1, a complex polynomial P (z) = n k=0 d k z k (d k = 0, 0 ≤ k ≤ n) has all its(More)
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