Coefficient estimates  for a new subclass of analytic and bi-univalent functions by Hadamard product

Ebrahim Analouei Adegani; Ahmad Zireh; Mostafa Jafari

doi:10.5269/bspm.39164

Ebrahim Analouei Adegani Shahrood University of Technology https://orcid.org/0000-0001-9176-3932
Ahmad Zireh Shahrood University of Technology
Mostafa Jafari Islamic Azad University

Résumé

In this work, we introduce a new subclas of bi-univalent functions which is defined by Hadamard product and
subordination in the open unit disk. and find upper bounds for the second and third coefficients for functions in this new subclass. Further, we generalize and improve some of the previously published results.

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