Shamsan, H. & Latha, S. (2022). Convolution conditions for q-convexity, q-starlikeness and q-spirallikeness. TWMS Journal of Applied and Engineering Mathematics, 12(3), 1032-1038.
Abstract
In the present investigation, the authors derive necessary and sufficient conditions for q-starlike, q-convex functions of order β and q-spirallike, convex q-spirallike functions using convolution
Source
TWMS Journal of Applied and Engineering Mathematics