Sharp Strichartz estimates on quadratic irrational tori

Rui Liang, Shunlin Shen, Yuzhao Wang

We prove sharp $L^4$ Strichartz estimates for two-dimensional periodic Schrödinger flows with integral diagonal symbols $a{k}_1^2+b{k}_2^2$ where $a,b \in \mathbb Z \setminus \{0\}…