- Abstract:
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It has been shown that for a general-valued constraint language Γ the following statements are equivalent: (1) any instance of VCSP(Γ) can be solved to optimality using a constant level of the Sherali-Adams LP hierarchy, (2) any instance of VCSP(Γ) can be solved to optimality using the third level of the Sherali-Adams LP hierarchy, and (3) the support of Γ satisfies the “bounded width condition” (i.e., it contains weak near-unanimity operations of all arities). We show that if the support of ...
Expand abstract - Publication status:
- Published
- Peer review status:
- Peer reviewed
- Version:
- Accepted Manuscript
- Files:
-
-
(pdf, 443.3KB)
-
- Publisher copy:
- 10.1145/3201777
-
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- Publisher:
- Association for Computing Machinary Publisher's website
- Journal:
- ACM Transactions on Computation Theory Journal website
- Volume:
- 10
- Issue:
- 3
- Pages:
- Article: 12
- Publication date:
- 2018-06-08
- Acceptance date:
- 2018-03-13
- DOI:
- ISSN:
-
1942-3454
- Pubs id:
-
pubs:829420
- URN:
-
uri:aee4e87e-fcee-4fe9-9aba-3b9e67d0de81
- UUID:
-
uuid:aee4e87e-fcee-4fe9-9aba-3b9e67d0de81
- Local pid:
- pubs:829420
- Copyright holder:
- ACM
- Copyright date:
- 2018
- Notes:
-
Copyright © 2018 ACM. This is the accepted manuscript version of the article. The final version is available online from ACM at: https://doi.org/10.1145/3201777
Journal article
The limits of SDP relaxations for general-valued CSPs
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