Sharp Spectral Projection Estimates for the Torus at $p_c=\frac{2(n+1)}{n-1}$

Daniel Pezzi

We prove sharp spectral projection estimates for tori in all dimensions at the exponent $p_c=\frac{2(n+1)}{n-1}$ for shrinking windows of width $1$ down to windows of length $λ^{-1…