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- Jay M. Jahangiri, Samaneh G. Hamidi
- Int. J. Math. Mathematical Sciences
- 2013

In this paper we introduce some new subclasses of the class σ of bi-univalent functions and obtain bounds for the initial coefficients of the Taylor series expansion of functions from the considered classes.

Article history: Received 23 April 2013 Accepted after revision 21 May 2013 Available online 30 May 2013 Presented by the Editorial Board Applying the Faber polynomial coefficient expansions to a class of meromorphic biunivalent functions, we obtain the general coefficient estimates for such functions and also examine their early coefficient bounds. A… (More)

- Samaneh G. Hamidi, Suzeini Abdul Halim, Jay M. Jahangiri
- Int. J. Math. Mathematical Sciences
- 2013

License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We consider meromorphic starlike univalent functions that are also bi-starlike and find Faber polynomial coefficient estimates for these types of functions. A function is said to be bi-starlike if both the function and its… (More)

- MATEMATIQKI VESNIK, Jay M. Jahangiri, Samaneh G. Hamidi
- 2015

A function is said to be bi-univalent in the open unit disk D if both the function and its inverse are univalent in D. By the same token, a function is said to be bi-Bazilevič in D if both the function and its inverse are Bazilevič there. The behavior of these types of functions are unpredictable and not much is known about their coefficients. In this paper… (More)

- Jay M. Jahangiri, Samaneh G. Hamidi
- Int. J. Math. Mathematical Sciences
- 2015

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