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On Janowski type harmonic functions associated with the Wright hypergeometric functions
G. Murugusundaramoorthya, S. Porwalb a School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
b Ram Sahai Government Degree College, Bairi-Shivrajpur, Kanpur 209205, Uttar Pradesh, India
Abstract:
In our present study we consider Janowski type harmonic functions class introduced and studied by Dziok, whose members are given by $h(z) = z + \sum_{n=2}^{\infty} h_n z^n$ and $g(z) = \sum_{n=1}^{\infty} g_n z^n$, such that $\mathcal{ST}_{H}(F,G)=\big\{ f = h + \bar{g} \in {H}:\frac{\mathfrak{D}_H f(z)}{f(z)}\prec\frac{1+Fz}{1+G z}; (-G \leq F < G \leq 1, \text{ with } g_1=0)\big\},$ where $\mathfrak{D}_H f(z) = zh'(z)-\overline{zg'(z)} $ and $z\in \mathbb{U}=\{z:z\in \mathbb{C} \text{ and }|z| < 1 \}.$ We investigate an association between these subclasses of harmonic univalent functions by applying certain convolution operator concerning Wright's generalized hypergeometric functions and several special cases are given as a corollary. Moreover we pointed out certain connections between Janowski-type harmonic functions class involving the generalized Mittag–Leffler functions. Relevant connections of the results presented herewith various well-known results are briefly indicated.
Key words:
harmonic functions, univalent functions, Wright's generalized hypergeometric functions.
Received: 02.02.2021
Citation:
G. Murugusundaramoorthy, S. Porwal, “On Janowski type harmonic functions associated with the Wright hypergeometric functions”, Vladikavkaz. Mat. Zh., 25:4 (2023), 91–102
Linking options:
https://www.mathnet.ru/eng/vmj887 https://www.mathnet.ru/eng/vmj/v25/i4/p91
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