Abstract
Maximizing the sum of two generalized Rayleigh quotients (SRQ) can be reformulated as a one-dimensional optimization problem, where the function value evaluations are reduced to solving semi-definite programming (SDP) subproblems. In this paper, we first use the dual SDP subproblem to construct an explicit overestimation and then propose a branch-and-bound algorithm to globally solve (SRQ). Numerical results demonstrate that it is even more efficient than the recent SDP-based heuristic algorithm.
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The authors are grateful to the two anonymous referees for their valuable comments and suggestions.
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Communicated by Ernesto G. Birgin.
This research was supported by NSFC under Grants 11571029, 11471325 and 11771056, and by fundamental research funds for the Central Universities under Grant YWF-17-BJ-Y-52.
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Wang, X., Wang, L. & Xia, Y. An efficient global optimization algorithm for maximizing the sum of two generalized Rayleigh quotients. Comp. Appl. Math. 37, 4412–4422 (2018). https://doi.org/10.1007/s40314-018-0575-9
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DOI: https://doi.org/10.1007/s40314-018-0575-9