Coefficient Bounds for a Subclass of Harmonic Mappings Con vex in One Direction - Kyungpook Mathematical Journal - 경북대학교 자연과학대학 수학과

경북대학교 자연과학대학 수학과 Kyungpook Mathematical Journal Coefficient Bounds for a Subclass of Harmonic Mappings Con vex in One Direction

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Coefficient Bounds for a Subclass of Harmonic Mappings Con vex in One Direction

Mohammad Mehdi Shabani, Maryam Yazdi, Saeed Hashemi Sababe

경북대학교 자연과학대학 수학과2021.06

Kyungpook Mathematical Journal 61권 2호 269-278(10pages)

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초록

In this paper, we investigate harmonic univalent functions convex in the di rection θ, for θ ∈ [0, π). We find bounds for fz(z), fz(z) and f(z), as well as coefficient bounds on the series expansion of functions convex in a given direction.

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