Earthline Journal of Mathematical Sciences https://earthlinepublishers.com/index.php/ejms <p style="text-align: justify;">The Earthline Journal of Mathematical Sciences (e-ISSN: 2581-8147) is a peer-reviewed international journal devoted to publishing original research papers containing substantial contributions in any direction of Pure and Applied Mathematics, Theoretical and Applied Statistics, Theoretical Computer Science, Mathematical Physics, Mathematical Chemistry, Mathematical Modelling, Mathematical Biology &amp; Biostatistics. Applications of Mathematics in Finance and Economics are also welcome. .</p> Earthline Publishers, Madanambedu, Chittoor, Andhra Pradesh, India en-US Earthline Journal of Mathematical Sciences 2581-8147 <p><img src="https://earthlinepublishers.com/public/site/images/ejcs/88x311.png"><br>This work is licensed under a&nbsp;<a href="http://creativecommons.org/licenses/by/4.0/" rel="license">Creative Commons Attribution 4.0 International License</a>.</p> Strong Differential Sandwich Results for Bazilevic-Sakaguchi Type Functions Associated with Admissible Functions https://earthlinepublishers.com/index.php/ejms/article/view/448 <p>In the present article, we define a new family for holomorphic functions (so-called Bazilevic-Sakaguchi type functions) and determinate strong differential subordination and superordination results for these new functions by investigating certain suitable classes of admissible functions. These results are applied to obtain strong differential sandwich results.</p> Abbas Kareem Wanas Najah Ali Jiben Al-Ziadi Copyright (c) 2022-01-10 2022-01-10 8 2 205 226 10.34198/ejms.8222.205226 Hankel Determinant Problem for q-strongly Close-to-Convex Functions https://earthlinepublishers.com/index.php/ejms/article/view/449 <p>In this paper, we introduce a new class $K_{q}(\alpha), \quad 0&lt;\alpha \leq1, \quad 0&lt;q&lt;1, $ of normalized analytic functions $f $ such that $\big|\arg\frac{D_qf(z)}{D_qg(z)}\big| \leq \alpha \frac{\pi}{2},$ where $g$ is convex univalent in $E= \{z: |z|&lt;1\} $ and $D_qf $ is the $q$-derivative of $f $ defined as:<br>$$D_qf(z)= \frac{f(z)-f(qz)}{(1-q)z}, \quad z\neq0\quad D_qf(0)= f^{\prime}(0). $$<br>The problem of growth of the Hankel determinant $H_n(k) $ for the class $K_q(\alpha) $ is investigated. Some known interesting results are pointed out as applications of the main results.</p> Khalida Inayat Noor Muhammad Aslam Noor Copyright (c) 2022-01-11 2022-01-11 8 2 227 236 10.34198/ejms.8222.227236 Generating Functions of Binary Products of Tribonacci and Tribonacci Lucas Polynomials and Special Numbers https://earthlinepublishers.com/index.php/ejms/article/view/451 <p>In this paper, we introduce a new operator defined in this paper, we give some new generating functions of binary products of Tribonacci and Tribonacci Lucas polynomials and special numbers.</p> Hind Merzouk Ali Boussayoud Kasi Viswanadh V. Kanuri Copyright (c) 2022-01-16 2022-01-16 8 2 237 262 10.34198/ejms.8222.237262 Fekete-Szegö Problem for Certain New Family of Bi-Univalent Functions https://earthlinepublishers.com/index.php/ejms/article/view/453 <p>In current effort, by making use of the principle of subordination, we introduce and study a new family of holomorphic and bi-univalent functions which are defined in open unit disk and solve Fekete-Szegö problem for functions which belong to this family.</p> Abbas Kareem Wanas Haeder Younis Althoby Copyright (c) 2022-01-17 2022-01-17 8 2 263 272 10.34198/ejms.8222.263272 Bipolar Complex Intuitionistic Fuzzy Sets https://earthlinepublishers.com/index.php/ejms/article/view/454 <p>The primary motivation behind this paper is to present a brief overview of the bipolar complex intuitionistic fuzzy sets (in short BCIFS) which is an extension of bipolar intuitionistic fuzzy set theory.</p> Abdallah Al-Husban Copyright (c) 2022-01-20 2022-01-20 8 2 273 280 10.34198/ejms.8222.273280