Exploring Jacobian Inexactness in Second-Order Methods for Variational Inequalities: Lower Bounds, Optimal Algorithms and Quasi-Newton Approximations - Agafonov, Artem; Ostroukhov, Petr; Mozhaev, Roman; Yakovlev, Konstantin; Gorbunov, Eduard; Takáč, Martin; Gasnikov, Alexander; Kamzolov, Dmitry (Advances in Neural Information Processing Systems, 2024)