<p>This paper investigates the minimization problem of the sum of convex-concave quadratic fractional functions over a non-empty bounded convex quadratic feasible set, referred to as the SCQRP problem. Firstly, by fully considering the problem’s structure, it is transformed into an equivalent problem (EP). Subsequently, a convex relaxation programming problem (CRP) is formulated for the EP. Thirdly, we propose a branch-and-bound algorithm to solve the SCQRP globally. This algorithm generates a sequence of feasible solutions by solving a series of convex relaxation programming problems (CRP), wherein any cluster point of the feasible solution sequence is a global optimal solution. The paper theoretically proves the algorithm’s convergence and its worst-case computational complexity. Numerical experiments demonstrate the algorithm’s effectiveness and feasibility.</p>

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A outcome-space-based branch-and-bound algorithm for a class of sum of convex-concave quadratic ratio programs

  • Peng Hu,
  • Zhiyou Wu,
  • Hengyang Gu,
  • Shaojun Yin,
  • Xinyi Su

摘要

This paper investigates the minimization problem of the sum of convex-concave quadratic fractional functions over a non-empty bounded convex quadratic feasible set, referred to as the SCQRP problem. Firstly, by fully considering the problem’s structure, it is transformed into an equivalent problem (EP). Subsequently, a convex relaxation programming problem (CRP) is formulated for the EP. Thirdly, we propose a branch-and-bound algorithm to solve the SCQRP globally. This algorithm generates a sequence of feasible solutions by solving a series of convex relaxation programming problems (CRP), wherein any cluster point of the feasible solution sequence is a global optimal solution. The paper theoretically proves the algorithm’s convergence and its worst-case computational complexity. Numerical experiments demonstrate the algorithm’s effectiveness and feasibility.