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On the improvement of Mocanu's conditions

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On the improvement of Mocanu’s conditions.pdf (274.0Kb)
Author
Nunokawa, M.
Owa, Shigeyoshi
Cho, N. E.
Sokół, J.
Yavuz Duman, Emel
Type
Article
Date
2013-12
Language
en_US
Metadata
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Abstract
We estimate |Arg{p(z)}| for functions of the form p(z)=1+a1z+a2z2+a3z3+⋯ in the unit disc D={z:|z|<1} under several assumptions. By using Nunokawa’s lemma, we improve a few of Mocanu’s results obtained by differential subordinations. Some applications for strongly starlikeness and convexity are formulated.
Subject
Nunokawa’s lemma
strongly starlike functions of order alpha
strongly convex functions of order alpha
subordination
URI
https://doi.org/10.1186/1029-242X-2013-426
https://hdl.handle.net/11413/2636
Collections
  • Makaleler / Articles [293]
  • Scopus Publications [724]

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İstanbul Kültür University

Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS