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Differential inequalities for spirallike and strongly starlike functions
- Source :
- Advances in Difference Equations, Vol 2021, Iss 1, Pp 1-12 (2021)
- Publication Year :
- 2021
- Publisher :
- SpringerOpen, 2021.
-
Abstract
- Abstract In this paper, by using a technique of the first-order differential subordination, we find several sufficient conditions for an analytic function p such that p ( 0 ) = 1 $p(0)=1$ to satisfy Re { e i β p ( z ) } > γ $\operatorname{Re}\{ {\mathrm{e}}^{{\mathrm{i}}\beta } p(z) \} > \gamma $ or | arg { p ( z ) − γ } | < δ $| \arg \{p(z)-\gamma \} |
Details
- Language :
- English
- ISSN :
- 16871847
- Volume :
- 2021
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Advances in Difference Equations
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.b19d43a2ac9249b9ba0851a6e8e3aa3b
- Document Type :
- article
- Full Text :
- https://doi.org/10.1186/s13662-021-03670-9