Sharp estimates of the norms of embeddings between Besov spaces (Q1747799)

Summary: Optimal estimates are obtained for the rates of blow up of the norm of the embedding \(B^s_{p,r}\hookrightarrow B^{s-n(\frac1p-\frac1q)}_{q,r}\) with \(p<q\) as \(s\rightarrow n\left(\frac1p-\frac1q\right)+\). We also show optimal limiting embeddings between Besov spaces and Lipschitz spaces.