%0 Journal Article %A Michael Ren %A Xiaomeng Xu %T Quasi-Invariants in Characteristic $p$ and Twisted Quasi-Invariants %J Symmetry, integrability and geometry: methods and applications %D 2020 %V 16 %U http://geodesic.mathdoc.fr/item/SIGMA_2020_16_a106/ %G en %F SIGMA_2020_16_a106