Ask & Answers dg.differential geometry – Why torsion is only defined for linear connection on TM? Answer
Ask & Answers dg.differential geometry – Examples of Einstein four-manifolds of negative sectional curvature Answer
Ask & Answers dg.differential geometry – If $\kappa^{2} > 0$ and $\tau^{2} >0$, how small can $\kappa_{n}^{2} + \tau_{g}^{2}$ be? Answer
Ask & Answers ag.algebraic geometry – Birational morphisms from DM stacks to their coarse moduli spaces Answer
