3 proofs of 2 well-known theorems on starlike and convex functions
Let f be analytic in D = {z ā C : |z| < 1}, and be given by f(z) = z + Pā n=2 anzn. We give three different proofs for the well-known sharp bounds for the second Hankel determinant |H2(2)(f)| = |a2a4 ā a23 | for starlike and convex functions.
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2022
|
| Online Access: | http://journalarticle.ukm.my/19451/ http://journalarticle.ukm.my/19451/1/Paper-6-Maslina.pdf |