The authors introduce (ηx,ηy,δ,ε)-GSSP as a convergence criterion and develop projected gradient-free descent-ascent methods achieving non-asymptotic rates for nonsmooth nonconvex-concave minimax optimization without weak convexity assumptions.
A first-order method for nonconvex-nonconcave minimax problems under a local Kurdyka-Łojasiewicz condition.arXiv preprint arXiv:2507.01932
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Nonsmooth Nonconvex-Concave Minimax Optimization: Convergence Criteria and Algorithms
The authors introduce (ηx,ηy,δ,ε)-GSSP as a convergence criterion and develop projected gradient-free descent-ascent methods achieving non-asymptotic rates for nonsmooth nonconvex-concave minimax optimization without weak convexity assumptions.