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When Is Muon Optimal? Radial Fragility and Minimax Geometry

arXiv:2610.21549v1 Announce Type: new Abstract: Muon replaces a matrix gradient by an approximate polar factor and has shown strong empirical performance in neural-network training. The Isotropic Curvature Model (ICM) provides a curvature-based explanation for this update by asking when gradient or…

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  1. 2026-10-16 04:00 · arXiv stat.ML
    When Is Muon Optimal? Radial Fragility and Minimax Geometry

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