Certain Results on Starlike and Close-to-Convex Functions

[摘要] Using the technique of differential subordination, we here, obtain certain sufficient conditions for starlike and close-to-convex functions. In most of the results obtained here, the region of variability of the differential operators implying starlikeness and close-to-convexity of analytic functions has been extended. The extended regions of the operators have been shown pictorially.

[学科分类] 公共、环境与职业健康