
19.2.1.4 Properties of normed spaces
Problem:
On \( C^{1}[0 ; 1] \) the following norms are given:
\[
\begin{array}{l}
\|f\|_{1}=|f(0)|+\int_{0}^{1} t^{2}\left|f^{\prime}(t)\right| d t \\
\|f\|_{2}=\int_{0}^{1}|f(t)| d t+\int_{0}^{1} t^{2}\left|f^{\prime}(t)\right| d t .
\end{array}
\]
Is it true that one of these norms is stronger than the other one? Are they equivalent?