Certain Geometric Properties of Normalized Euler Polynomial
In this paper, we introduce and investigate a new class of analytic functions generated by Euler polynomials through a suitable normalization. Using classical tools from geometric function theory, including coefficient monotonicity, Fejér-type inequalities, MacGregor’s criteria, and Ozaki’s close-to-convexity condition, we establish sufficient conditions for the univalence, starlikeness, convexity, and close-to-convexity of the proposed Euler-polynomial-based normalized function. Sharp radius results for starlikeness, convexity, and close-to-convexity in the disk D1/2 are derived by exploiting refined coefficient bounds involving higher-order Euler polynomial terms. Several illustrative examples and graphical demonstrations are provided to verify the theoretical findings. The results obtained extend the known geometric properties of special function-based analytic classes and offer a new perspective on the geometric behavior of Euler polynomials in the unit disk.
Authors
- Suha B. Al-Shaikh (ORCID: https://orcid.org/0000-0002-9960-2591)
- Mohammad Faisal Khan (ORCID: https://orcid.org/0000-0001-5053-5028)
- Naeem Ahmad
Institutions
- Saudi Electronic University (SA)
- Qassim University (SA)
- Arab Open University (SA)
Publication Details
- Journal
- Fractal and Fractional
- Published
- 2026-02-24
- DOI
- https://doi.org/10.3390/fractalfract10030136
- Primary Topic
- Analytic and geometric function theory
- Type
- article
- Field-Weighted Citation Impact
- 0.00