Abstract
Simple necessary optimality conditions are formulated for a function f of the form f _ g–h, where g and h are nonsmooth functions. Related sufficient conditions are given for local minimization and global minimization.
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Penot, JP. On the Minimization of Difference Functions. Journal of Global Optimization 12, 373–382 (1998). https://doi.org/10.1023/A:1008233531797
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DOI: https://doi.org/10.1023/A:1008233531797