For $T$ large, over $Q_{T}\setminus P$, both $\tilde{\omega}$ and $h$ are positive. Moreover, $h$ has the following approximation formula

(4.16)		$\displaystyle h$	$\displaystyle=T^{2-n}(T+k_{\pm}z)^{n-1}+\epsilon(z),\quad|z|\geq 1,$
(4.17)		$\displaystyle h$	$\displaystyle=T+\frac{1}{2r}+O^{\prime}(r)+T^{-1}B(z),\quad|z|\leq 1,$

where $O^{\prime}(r)$ is a fixed function independent of $T$, and it has the singular behavior near $P$ given by Definition 3.3.