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    Defeng Sun

    Defeng Sun

    • Hong Kong
    • PolyU, Hong Kong
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    Research Highlights

    • Sensitivity Analysis in Nonlinear Semidefinite Programming

    • Augmented Lagrangian Methods for Solving Composite Conic Programming

    • Smoothing Newton Methods with Global and Local Superlinear Convergence

    • Computations of the limiting (Mordukhovich) coderivative of the metric projection onto non-polyhedral convexs sets

    • Second Order Methods for Solving Lasso Problems and Their Extensions

    • A Restricted Wolfe Dual for Convex Quadratic Programming

    • A Symmetric Gauss-Seidel Decomposition Theorem for Convex Composite Quadratic Functions

    • Halpern Peaceman-Rachford (HPR) Acceleration Methods

    • Extragradient Methods for Monotone Variational Inequalities under Continuity

    Last Modified: June 7, 2025
    Defeng Sun, Department of Applied Mathematics, Faculty of Computer and Mathematical Sciences, The Hong Kong Polytechnic University