3 problems

Let $p$ and $p'$ satisfy $3<p\leq p'$. Consider the continuous embedding … A profile-decomposition failure conjecture. Profile decompositions fail for this continuous embedding. Pr…

Let $X=\dot B^s_{p,a}$ and $Y=L^{q,a}$ be Besov and Lorentz spaces, respectively, in the critical embedding regime … Assume that Assumption 1 refers to the approximation property u…

Let $X=\dot B^s_{p,a}$ and $Y=\dot B^t_{q,a}$ be Besov spaces in the critical embedding regime, with … Assume that Assumption 1 refers to the approximation property used to obtain…