grandes-ecoles 2021 Q1.2

grandes-ecoles · France · x-ens-maths__pc Proof Proof That a Map Has a Specific Property

Let $K$ be a closed, bounded and infinite subset of $\mathbb{C}$. Verify that $\|\cdot\|_K$ is a norm on $\mathbb{C}[X]$.

Let $K$ be a closed, bounded and infinite subset of $\mathbb{C}$. Verify that $\|\cdot\|_K$ is a norm on $\mathbb{C}[X]$.