Papers › An Unregularized Third Order Newton Method

An Unregularized Third Order Newton Method

21 Sep 2022arXiv:2209.10051links table onlyarchive 2025-07-28

Olha Silina, Jeffrey Zhang

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In this paper, we propose a third-order Newton's method which in each iteration solves a semidefinite program as a subproblem. Our approach is based on moving to the local minimum of the third-order Taylor expansion at each iteration, rather than that of the second order. We show that this scheme has local cubic convergence. We then provide numerical experiments comparing this scheme to some standard algorithms.

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