Let function be analytic in the unit disk and be normalized so that In this paper we give sharp bounds of the modulus of its second, third and fourth coefficient, if satisfies
for and .
"On the initial coefficients for certain class of functions analytic in the unit disc." Rocky Mountain J. Math. 50 (5) 1779 - 1784, October 2020. https://doi.org/10.1216/rmj.2020.50.1779