6 citations · 10 across the 5 of their papers we have counts for
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Second Hankel determinant for certain subclasses of bi-univalent functions involving Chebyshev polynomials
Halit Orhan, Evrim Toklu, Ekrem Kadıoğlu
In this paper our purpose is to find upper bound estimate for the second Hankel determinant for functions defined by convolution belonging to the class $\m…
Second Hankel Determinant for certain class of bi-univalent functions defined by Chebyshev polynomials
H. Orhan, N. Magesh, V. K. Balaji
Making use of Chebyshev polynomials, we obtain upper bound estimate for the second Hankel determinant of a subclass of bi-univalent function c…
Bounds for radii of convexity of some -Bessel functions
Halit Orhan, İbrahim Aktaş
In the present investigation, by applying two different normalizations of the Jackson and Hahn-Exton -Bessel functions tight lower and upper bounds for the radii of convexity of…
Univalence and quasiconformal extension of an integral operator
S. Kanas, E. Deniz, H. Orhan
In this paper we give some sufficient conditions of analyticity and univalence for functions defined by an integral operator. Next, we refine the result to a quasiconformal extensi…
Partial sums of the normalized Dini functions
Halit Orhan, İbrahim Aktaş
Let be the sequence of partial sums of normalized Dini functions $w_{α,v}(z)=z+\sum\limits_{n=1}^{\infty }a_{n}…
Initial coefficient bounds for a general class of bi-univalent functions
H. Orhan, N. Magesh, V. K. Balaji
Inspired by the recent works of Srivastava et al. (HMS-AKM-PG), Frasin and Aouf (BAF-MKA) and others (Ali-Ravi-Ma-Mina-class,Caglar-Orhan,Goyal-Goswami,Xu-HMS-AML,Xu-HMS-AMC), we p…