Open AccessCertain sufficient conditions for close-to-convexity and starlikeness of multivalent functions
Author(s) -
M. K. Aouf,
Teodor Bulboacă,
A. O. Mostafa
Publication year - 2020
Publication title -
acta et commentationes universitatis tartuensis de mathematica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.276
H-Index - 6
eISSN - 2228-4699
pISSN - 1406-2283
DOI - 10.12697/acutm.2019.23.18
Subject(s) - convexity , mathematics , pure mathematics , economics , financial economics
By using Jack's lemma, we derive simple sufficient conditions for analytic functions to be multivalent close-to-convex and multivalent starlike.
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