Intrinsic Diophantine approximation on quadric hypersurfaces

Lior Fishman, Dmitry Kleinbock, Keith Merrill +1

We consider the question of how well points in a quadric hypersurface $M\subset {\mathbb{R}}^d$ can be approximated by rational points of ${\mathbb{Q}}^d\cap M$. This contrasts with the m…