Some Reciprocal Classes of Close-to-Convex and Quasi-Convex Analytic Functions
Date
2019
Authors
Mahmood, Shahid
Sokół, Janusz
Srivastava, H.M.
Malik, Sarfraz Nawaz
Journal Title
Journal ISSN
Volume Title
Publisher
Mathematics
Abstract
The present paper comprises the study of certain functions which are analytic and
defined in terms of reciprocal function. The reciprocal classes of close-to-convex functions and quasi-convex functions are defined and studied. Various interesting properties, such as sufficiency criteria, coefficient estimates, distortion results, and a few others, are investigated for these newly defined sub-classes.
Description
Keywords
subordination, functions with positive real part, reciprocals
Citation
Mahmood, S., Sokół, J., Srivastava, H.M. & Malik, S.N. (2019). Some Reciprocal Classes of Close-to-Convex and Quasi-Convex Analytic Functions. Mathematics, 7(4), 309. https://doi.org/10.3390/math7040309