61 citations · 107 across the 15 of their papers we have counts for
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math.OC2024
Sequential subspace methods on Stiefel manifold optimization
Pengwen Chen, Chung-Kuan Cheng, Chester Holtz
We investigate the minimization of a quadratic function over Stiefel manifolds (the set of all orthogonal - frames in ), which has applications in high-dimensional…
math.OC2021★ 1 cited
Local saddle structure in relaxed averaged alternating reflections Algorithms on phase retrieval
Pengwen Chen
Phase retrieval can be expressed as one non-convex constrained optimization problem to identify one phase minimizer in the primal space. Many iterative transform techniques have be…
math.OC2014
Recovering rank-one matrices via rank-r matrices relaxation
Pengwen Chen, Hung Hung
PhaseLift, proposed by E.J. Candès et al., is one convex relaxation approach for phase retrieval. The relaxation enlarges the solution set from rank one matrices to positive semide…