PT1−γγP T^{\frac{1-\gamma}{\gamma}}PTγ1−γ
TPγγ−1T P^{\frac{\gamma}{\gamma-1}}TPγ−1γ
PTγ1−γP T^\frac{\gamma}{1-\gamma}PT1−γγ
TP1−γγT P^{\frac{1-\gamma}{\gamma}}TPγ1−γ