I. Shafrir

activity

20102025

collaborators

Showing 2017 · math.FAShow all

2 papers · 2 filters

math.FA2017

On the distance between homotopy classes in $W^{1/ p, p} (S^{1}; S^{1})$

Itai Shafrir

For every $p \in (1, \infty)$ there is a natural notion of topological degree for maps in $W^{1/ p, p} (S^{1}; S^{1})$ which allows us to write that space as a disjoint un…

math.FA2017

The best constant in the embedding of $W^{N, 1} (R^{N})$ into $L^{\infty} (R^{N})$

Itai Shafrir

We compute the best constant in the embedding of $W^{N, 1} (R^{N})$ into $L^{\infty} (R^{N})$ , extending a result of Humbert and Nazaret in dimensions one and two to any…

On the distance between homotopy classes in W1/p,p(S1;S1)

The best constant in the embedding of WN,1(RN) into L∞(RN)

On the distance between homotopy classes in $W^{1/ p, p} (S^{1}; S^{1})$

The best constant in the embedding of $W^{N, 1} (R^{N})$ into $L^{\infty} (R^{N})$