Master Theorem of Dive-and-Conquer

$$T(n) = aT(n/b)+f(n)$$ Then $T(n)$ has the following asympotic bounds:

1. If $f(n) = O (n^{\log_b a - \epsilon})$ for some constant $\epsilon>0$, Then $T(n) = \Theta(n^{log_b a})$
2. If $f(n) = \Theta (n^{log_b a})$, Then $T(n) = \Theta(n^{log_b a}\lg n)$
3. If $f(n) = \Omega(n^{log_b a + \epsilon})$ for some constant $\epsilon>0$, and if $af(n/b) \leq cf(n)$ for some constant $c \leq 1$ and all sufficiently large $n$, then $T(n)=\Theta(f(n))$