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Zbl 1189.30041
Srivastava, H.M.; Xu, Qing-Hua; Wu, Guang-Ping
Coefficient estimates for certain subclasses of spiral-like functions of complex order.
(English)
[J] Appl. Math. Lett. 23, No. 7, 763-768 (2010). ISSN 0893-9659

Summary: We introduce and investigate two interesting subclasses $$\cal M_g(n, \lambda , b) \quad\text{and} \quad\cal M_g(n, \lambda , b; u)$$ of analytic functions of complex order, which are defined by means of the familiar Sălăgean derivative operator. For functions belonging to each of these subclasses $$\cal M_g(n, \lambda , b) \quad\text{and}\quad \cal M_g(n, \lambda , b; u),$$ we obtain several results involving (for example) coefficient bounds. The results presented here generalize many known results.
MSC 2000:
*30C45 Special classes of univalent and multivalent functions

Keywords: starlike function; analytic function of complex order; spiral-like function of complex order; coefficient bounds

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