Skip to content

Archives › Volume 2019 (2019)

Eng. Math. Lett. 2019 (2019), Article ID 5

Study of a new class for higher-order derivatives of harmonic multivalent functions

Abbas Kareem Wanas, Firas Hussean Maghool

Abstract

In this paper, we define and investigate a new class for higher-order derivatives of harmonic multivalent functions. We obtain coefficient inequalities, distortion bounds, extreme points, convex combination. Our results extend corresponding previously known results.

Published
12 March 2019
Volume
2019 (2019)
License
CC BY 3.0

Copyright © 2019 Abbas Kareem Wanas, Firas Hussean Maghool. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this article

A. K. Wanas, F. H. Maghool, Study of a new class for higher-order derivatives of harmonic multivalent functions, Eng. Math. Lett. 2019 (2019), 5. https://doi.org/10.28919/eml/3940

BibTeX
@article{Wanas2019,
  author  = {Wanas, Abbas Kareem and Maghool, Firas Hussean},
  title   = {Study of a new class for higher-order derivatives of harmonic multivalent functions},
  journal = {Eng. Math. Lett.},
  volume  = {2019},
  year    = {2019},
  pages   = {5},
  doi     = {10.28919/eml/3940}
}