Author = Shahram Najafzadeh
Application of Sigmoid function in the space of univalent functions based on subordination

Articles in Press, Accepted Manuscript, Available Online from 02 December 2023

Farideh Madadi Tamrin; Shahram Najafzadeh; Mohammad Reza Foroutan


Meromorphic functions with missing coefficients defined by $q$-derivative

Volume 13, Issue 1, November 2023, Pages 61-70

Shahram Najafzadeh; Tahereh Behpour; Ali Ebadian; Robab H. Haghi


A Subclass of bi-univalent functions by Tremblay differential operator satisfying subordinate conditions

Volume 12, Issue 2, May 2023, Pages 431-441

Somayeh Fadaei; Shahram Najafzadeh; Ali Ebadian


Initial Coefficient Bounds for interesting Subclasses of Meromorphic and and Bi-Univalent Functions

Volume 11, Issue 2, May 2022, Pages 9-17

Hormoz Rahmatan; Shahram Najafzadeh; Hakimeh Haji


Some connections between various subclasses of univalent functions involving Pascal distribution series

Volume 11, Issue 1, January 2022, Pages 39-46

Rohollah Valizadeh; Shahram Najafzadeh; Asghar Rahimi; Bayaz Daraby