We will present a four terms asymptotic formula, we have
obtained, of the Hausdorff dimension of the radial Julia set
$J_r(f_{\lambda})$ for the exponential function $f_{\lambda}(z)=\lambda
e^z$ as $\lambda \to 0$. Moreover, we will also discuss the
asymptotic behaviour of the Hausdorff dimension of the radial Julia set
of cosine functions $f_{a,b}(z)=ae^z+be^{-z}$ as $a,b \to 0$ in various
ways. This is a joint work with Prof. Qiu.
Meeting ID: 852 4277 3200
Passcode: 103121