Abstract In this work, the geometric properties of new subclasses A m g ( p, t, b, α ) and M m g ( p, t, b, α ; Λ) were studied. In particular the characterisation property and coefficient bound for functions in A m g ( p, t, b, α ), distortion and growth property for functions in M m g ( p, t, b, α ; Λ) and inclusion relations for functions in the two subclasses were established.
Amao et al. (Sun,) studied this question.