Sobolev algebra
= Sobolev algebra
{c}
On a sufficiently regular domain in $\mathbb R^n$, $H^s$ is a Banach algebra when $s>n/2$:
$$
\|uv\|_{H^s}\leq C\|u\|_{H^s}\|v\|_{H^s}.
$$
= Sobolev algebra
{c}
On a sufficiently regular domain in $\mathbb R^n$, $H^s$ is a Banach algebra when $s>n/2$:
$$
\|uv\|_{H^s}\leq C\|u\|_{H^s}\|v\|_{H^s}.
$$