Starlikeness for certain close-to-star functions

R. KANAGA; V RAVİCHANDRAN

doi:https://doi.org/10.15672/hujms.702703

Makale detayları

Starlikeness for certain close-to-star functions

Yazarlar:

R. KANAGA | V RAVİCHANDRAN

Yayıncı:

Hacettepe University

Ana Başlıklar:

Matematik

Dergi:

Hacettepe Journal of Mathematics and Statistics 2021 Vol.50 Issue 2, pp.414-432

Belge Tipi:

Makale

Yayın Tarihi:

4/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000450713

Sıklık:

İki Aylık

eISSN:

2651-477X

pISSN:

2651-477X

DOI:

https://doi.org/10.15672/hujms.702703

Özet:

 

We find the radius of starlikeness of order αα\alpha, 0≤α0Re(f(z)/g(z))>0 or |(f(z)/g(z))−1| 0Re(g(z)/(z+z2/2))>0Re(g(z)/(z+z^2/2))>0 as well as of the class of  close-to-star functions fff satisfying Re(f(z)/(z+z2/2))>0Re(f(z)/(z+z2/2))>0Re(f(z)/(z+z^2/2))>0. Several other radii   such as radius of univalence and  parabolic starlikeness  are shown to be the same as the radius of starlikeness of appropriate order.

Makale detayları

Starlikeness for certain close-to-star functions

Yazarlar: R. KANAGA | V RAVİCHANDRAN

Yayıncı: Hacettepe University

Ana Başlıklar: Matematik

Dergi: Hacettepe Journal of Mathematics and Statistics 2021 Vol.50 Issue 2, pp.414-432

Belge Tipi: Makale

Yayın Tarihi: 4/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000450713

Sıklık: İki Aylık

eISSN: 2651-477X

pISSN: 2651-477X

DOI: https://doi.org/10.15672/hujms.702703

Sayı

Yazarlar:

R. KANAGA | V RAVİCHANDRAN

Yayıncı:

Hacettepe University

Ana Başlıklar:

Matematik

Dergi:

Hacettepe Journal of Mathematics and Statistics 2021 Vol.50 Issue 2, pp.414-432

Belge Tipi:

Makale

Yayın Tarihi:

4/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000450713

Sıklık:

İki Aylık

eISSN:

2651-477X

pISSN:

2651-477X

DOI:

https://doi.org/10.15672/hujms.702703