Abstract

It is proved that any DCA sequence constructed by Pham Dinh---Le Thi's algorithm for the trust-region subproblem (Pham Dinh and Le Thi, in SIAM J. Optim. 8:476---505, 1998) converges to a Karush---Kuhn---Tucker point of the problem. This result provides a complete solution for one open question raised by Le Thi et al. (J. Global Optim., Online First, doi: 10.1007/s10898-011-9696-z , 2010).

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