BOUND ON HANKEL DETERMINANTS H (2) 4 (f) AND H (3) 4 (f) FOR LEMNISCATE STARLIKE FUNCTIONS

BOUND ON HANKEL DETERMINANTS H (2) 4 (f) AND H (3) 4 (f) FOR LEMNISCATE STARLIKE FUNCTIONS

We determine the upper bounds on fourth order Hankel determinants H (2) 4 (f) and H (3) 4 (f) for the class S * L of lemniscate starlike functions defined on the open unit disk which was introduced by Sokół and Stankiewicz in [17].

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Honam mathematical journal 2023, Vol.45 (1), p.92-108
Hauptverfasser: Sushil Kumar, Pratima Rai, Asena Çetinkaya
Format: Artikel
Sprache:kor
Schlagworte:
coefficient estimates
Lemniscate starlike function
starlike functions
third and fourth order Hankel determinants
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We determine the upper bounds on fourth order Hankel determinants H (2) 4 (f) and H (3) 4 (f) for the class S * L of lemniscate starlike functions defined on the open unit disk which was introduced by Sokół and Stankiewicz in [17].
ISSN:1225-293X