Semnan University International Journal of Nonlinear Analysis and Applications 2008-6822 2025 11 12 Some extensions of the Enestrom-Kakeya theorem for quaternionic polynomials 10243 10.22075/ijnaa.2024.35090.5240 EN Abdul Liman Department of Mathematics, National Institute of Technology, Hazratbal Srinagar-190006, Jammu and Kashmir, India Urba Akhter Department of Mathematics, National Institute of Technology, Hazratbal Srinagar-190006, Jammu and Kashmir, India Journal Article 2024 08 21 In this paper, we are interested in finding regions of some quaternionic polynomials with restricted coefficients. We relax the hypothesis and put less restrictive conditions on the coefficients of the quaternionic polynomial, and thereby generalize some known results by virtue of a maximum modulus theorem. The obtained results for the class of quaternionic polynomials generalize some recently proved results about the distribution of zeros of polynomials. Quaternionic Polynomial Maximum-Modulus Theorem Enestrom-Kakeya Theorem https://ijnaa.semnan.ac.ir/article_10243_a56ee48e5c142c26cf645b2cc23d78fc.pdf