Abstract
The well-known sequentially lifted cover inequality is widely employed in solving mixed integer programs. However, it is still an open question whether a sequentially lifted cover inequality can be computed in polynomial time for a given minimal cover (Gu et al. (1999)). We show that this problem is NP-hard, thus giving a negative answer to the question.
Original language | English |
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Pages (from-to) | 211-220 |
Number of pages | 10 |
Journal | Science China Mathematics |
Volume | 64 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2021 |
Keywords
- 90C11
- 90C27
- complexity
- integer programming
- lifting problem
- sequentially lifted cover inequality