نتایج جستجو برای: Coefficient bounds

تعداد نتایج: 238960  

Journal: :Journal of Symbolic Computation 2004

Abstract. In this paper we define and verify a subclass of harmonic univalent functions involving the argument of complex-value functions of the form f = h + ¯g and investigate some properties of this subclass e.g. necessary and sufficient coefficient bounds, extreme points, distortion bounds and Hadamard product.Abstract. In this paper we define and verify a subclass of harmonic univalent func...

Journal: :International Journal of Mathematics and Mathematical Sciences 2007

Journal: :Bulletin of the Belgian Mathematical Society - Simon Stevin 2014

Journal: :Rocky Mountain Journal of Mathematics 1983

Journal: :Journal of function spaces 2021

It is well-known that the logarithmic coefficients play an important role in development of theory univalent functions. If S denotes class functions id="M2"> f z = + ∑ n 2 <...

Journal: :bulletin of the iranian mathematical society 2014
t. seoudy

in this paper we obtain coefficient characterization‎, ‎extreme points and‎ ‎distortion bounds for the classes of harmonic $p-$valent functions‎ ‎defined by certain modified operator‎. ‎some of our results improve‎ ‎and generalize previously known results‎.

Journal: :Proceedings of the American Mathematical Society 1988

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