%0 Journal Article %T Quadratic optimization with orthogonality constraint: explicit Ɓojasiewicz exponent and linear convergence of retraction-based line-search and stochastic variance-reduced gradient methods %A Liu, Huikang %A So, Anthony %A Wu, Weijie %J Mathematical Programming %V 178 %N 2 %P 215-262 %@ 0025-5610 %D 2018-06-01 %I Springer Berlin Heidelberg %~ DeepDyve