232 citations · 243 across the 6 of their papers we have counts for
1 paper · 1 filter
Lee See Keong, V. Ravichandran, Shamani Supramaniam
The estimates for the second Hankel determinant a_2a_4-a_3^2 of analytic function f(z)=z+a_2 z^2+a_3 z^3+...b for which either zf'(z)/f(z) or 1+zf"(z)/f'(z) is subordinate to certa…