\(\displaystyle\int x \exp(x) \; dx = \exp(x) \sum_{k=2}^{\infty} \frac{(-1)^{k}}{k!} x^k + \lim_{n \to \infty} \int \frac{(-1)^{n+1}}{(n+1)!} x^{n+1} \exp(x)\;dx\)

\(E^{p,q}_2=H^{p,0}(X;\mathcal{H}^{q,r}(f;M)) \Rightarrow H^{p+q,r}(E;M)\)

\(n = 2^k + 2^{k-2} \Rightarrow r(T_n) = 2n - 2 - \lfloor \log_2 n \rfloor \).