Table 2.

Numerical orders of convergence in the time variable with $\{\alpha ,\beta \}=\{0.6,0.9\}$ on domains ${\mathrm{\Omega }}_3$ and ${\mathrm{\Omega }}_4$ of Example 1.

$\delta t$	${\mathrm{\Omega }}_3$		${\mathrm{\Omega }}_4$
	$L_{\infty }$	$C_{\delta t}$	$L_{\infty }$	$C_{\delta t}$
$1/10$	$3.6339e-03$	–	$4.1765e-03$	–
$1/20$	$1.2596e-03$	$1.5286$	$1.5332e-03$	$1.4457$
$1/40$	$4.2525e-04$	$1.5666$	$5.2825e-04$	$1.5373$
$1/80$	$1.4188e-04$	$1.5836$	$1.7552e-04$	$1.5896$
$1/160$	$4.6799e-05$	$1.6001$	$5.7206e-05$	$1.6174$
$1/320$	$1.4833e-05$	$1.6577$	$1.8761e-05$	$1.6084$
$1/640$	$4.8304e-06$	$1.6186$	$6.0341e-06$	$1.6365$
$1/1280$	$3.3887e-06$	$1.6146$	$9.1815e-05$	$1.6698$