Distance constraint satisfaction problems
Distance constraint satisfaction problems
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距离约束满足问题
DOI:
10.1016/j.ic.2015.11.010
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发表时间:
2016
影响因子:
1
通讯作者:
Bodirsky M
中科院分区:
文献类型:
--
作者:
Bodirsky M
We study the complexity of constraint satisfaction problems for templates Γ over the integers where the relations are first-order definable from the successor function. In the case that Γ is locally finite (i.e., the Gaifman graph of Γ has finite degree), we show that Γ is homomorphically equivalent to a structure with one of two classes of polymorphisms (which we call modular max and modular min) and the CSP for Γ can be solved in polynomial time, or Γ is homomorphically equivalent to a finite transitive structure, or the CSP for Γ is NP-complete. Assuming a widely believed conjecture from finite domain constraint satisfaction (we require thetractability conjectureby Bulatov, Jeavons and Krokhin in the special case oftransitivefinite templates), this proves that those CSPs have a complexity dichotomy, that is, are either in P or NP-complete.
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DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
M. Maróti;R. McKenzie
通讯作者:
R. McKenzie
影响因子:
1.6
作者:
Feder, T;Vardi, MY
通讯作者:
Vardi, MY
DOI:
10.2168/lmcs-3(1:2)2007
发表时间:
2006
期刊:
Log. Methods Comput. Sci.
影响因子:
--
作者:
M. Bodirsky
通讯作者:
M. Bodirsky
DOI:
10.1007/978-3-540-92800-3_4
发表时间:
2008
期刊:
2009 50th Annual IEEE Symposium on Foundations of Computer Science
影响因子:
--
作者:
A. Bulatov;M. Valeriote
通讯作者:
M. Valeriote
DOI:
10.2178/jsl/1286198146
发表时间:
2008
期刊:
The Journal of Symbolic Logic
影响因子:
--
作者:
M. Bodirsky;Hubie Chen;M. Pinsker
通讯作者:
M. Pinsker