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[WIP] Spectral Bundle Method #8

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[WIP] Spectral Bundle Method #8

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holmesco
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Implements the Spectral Bundle Method for solving the minimum eigenvalue maximization problem

TODO

  • Set up proper unit tests for the QP and SDP subproblems

…ems, but need termination criteria for local opt.
…rts ; /usr/bin/env /home/cho/mambaforge/envs/mwcerts/bin/python /home/cho/.vscode-server/extensions/ms-python.python-2023.20.0/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher 56175 -- /home/cho/research/mat_weight_certs/src/certifiable-tools/_script/explore_prob_6.py
…ems (linear independance check was turned off)
…s that are close to the current minimum eigenvalue.
… model giving negative cost delta prediction.
…terations. Changed the sbm method to have an equality on the trace constraints (as per Helmberg paper), introduced intermediate x_step to keep track of null steps and improve readibility.
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