Estimates of the fourth Hankel determinant for a class of analytic functions with bounded turnings involving cardioid domains (JNCA) 

  Volume 22, Number 3, 511-526, 2021

Estimates of the fourth Hankel determinant for a class of analytic functions with bounded turnings involving cardioid domains

H. M. Srivastava, Gaganpreet Kaur and Gurmeet Singh



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