M. Bidkham
Semnan University
35 Papers
95 Citations
M. Bidkham is an academic researcher from Semnan University. The author has contributed to research in topics: Polynomial & Matrix polynomial. The author has an hindex of 7, co-authored 33 publications. Previous affiliations of M. Bidkham include Jamia Millia Islamia.
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Papers
On the Eneström-Kakeya Theorem
K. K. Dewan,M. Bidkham +1 more
TL;DR: In this article, Enestrom and Kakeya extended this result to polynomials whose coefficients satisfy the condition t n a n ≤ t n −1 a n−1 ≤ ··· ≤ t λ+1 a λ + 1 ≤ t ∑ n k = 0 a k z k ≠ 0, for some t > 0 and 0 n.
44
Inequalities for a Polynomial and its Derivative
M. Bidkham,K. K. Dewan +1 more
TL;DR: In this article, it was shown that for any p(z) = ∑v = 0navzv, a polynomial of degree n having no zeros in ¦z¦ can be shown to be 1 ¦p(z).
38
Inequalities for the polar derivative of a polynomial with restricted zeros
Ahmad Zireh,M. Bidkham +1 more
TL;DR: For a polynomial p(z) having no zeros in |z| < 1, except s-fold zeros at the origin, Liman et al. as discussed by the authors showed that for all α, β C with |α| ≥ 1, β| ≤ 1 and |β| = 1, |zDαp(z)-nβ |α+nβ|α| 1 2 p(p) |≤ n 2.
Faber polynomial coefficient estimates for subclass of bi-univalent functions defined by quasi-subordinate
TL;DR: In this paper, the Faber polynomial expansion was used to find upper bounds for coefficients of functions belonging to classes HqΣ(λ,h),STq Σ(α,h) and MQΣ (α, h) which are defined by quasi-subordinations.
23
Hyers-Ulam stability of polynomial equations.
TL;DR: Li and Hua as mentioned in this paper proved the Hyers-Ulam stability of the polynomial equation and gave an affirmative answer to a problem posed by Li and Hua (2009).