On extensions of the Jack and open-door lemmas
Abstract In the present paper, we apply the theory of differential subordination to extend the famous Jack lemma for analytic functions. Also, using this extension we will produce new versions of the open-door lemma for analytic functions, and utilizing them some simple conditions for starlikeness o...
| Published in: | Journal of Inequalities and Applications |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-03-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13660-023-02925-1 |