Operations Research Transactions ›› 2025, Vol. 29 ›› Issue (2): 175-183.doi: 10.15960/j.cnki.issn.1007-6093.2025.02.013

• Research Article • Previous Articles     Next Articles

Generalized Tchebycheff norm scalarization in multi-objective optimization

Yuanmei XIA1, Dandan XIA1, Kequan ZHAO1,*()   

  1. 1. School of Mathematical Sciences, Chongqing Normal University, Chongqing 401331, China
  • Received:2022-02-21 Online:2025-06-15 Published:2025-06-12
  • Contact: Kequan ZHAO E-mail:kequanz@163.com

Abstract:

Scalarization method is one of the basic research subjects for multi-objective optimization problems. In this paper, we first study the properties of generalized Tchebycheff norm, and obtain some strict monotonicity results on the non-negative quadrant. Furthermore, two kinds of scalarization results of weakly efficient solutions, efficient solutions, strictly efficient solutions and properly efficient solutions of multi-objective optimization problems are studied by using the properties of the generalized Tchebycheff norm. Moreover, we point out that under the assumption of convexity of the objective function, the scalarization studied in this paper is equivalent to the weighted scalarization.

Key words: multi-objective optimization, generalized Tchebycheff norm, strict monotonicity, scalarization, (weakly, strictly, properly) efficient solutions

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