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Coefficient estimates for some subclasses of bi-univalent functions related to m-fold symmetry | ||
| Journal of Al-Qadisiyah for Computer Science and Mathematics | ||
| Article 1, Volume 11, Issue 2, 2019, Pages 81-86 PDF (0 K) | ||
| Authors | ||
| Salwa Kalf Kazim; Waggas Galib Atshan | ||
| Abstract | ||
| Abstract: The purpose of present paper is to introduce and investigate two new subclasses N_(∑_m ) (τ,γ,α) and N_(∑_m ) (τ,γ,β) of analytic and m-fold symmetric bi- univalent functions in the open unit disk . Among other results belonging to these subclasses upper coefficients bounds |a_(m+1) | and |a_(2m+1) | are obtained in this study. Certain special cases are also indicated . | ||
| Keywords | ||
| fold symmetry; univalent functions; coefficient estimates | ||
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