Separating Rank Logic from Polynomial Time
Separating Rank Logic from Polynomial Time
复制标题
将排序逻辑与多项式时间分离
DOI:
10.1109/lics52264.2021.9470598
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Moritz Lichter
中科院分区:
文献类型:
--
作者:
Moritz Lichter
In the search for a logic capturing polynomial time the most promising candidates are Choiceless Polynomial Time (CPT) and rank logic. Rank logic extends fixed-point logic with counting by a rank operator over prime fields. We show that the isomorphism problem for CFI graphs over ${{\mathbb{Z}}_{{2^i}}}$ cannot be defined in rank logic, even if the base graph is totally ordered. However, CPT can define this isomorphism problem. We thereby separate rank logic from CPT and in particular from polynomial time.
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DOI:
10.1137/1.9781611974782.21
发表时间:
2017
期刊:
影响因子:
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作者:
C. Berkholz;M. Grohe
通讯作者:
M. Grohe
DOI:
10.1007/978-3-319-23534-9_11
发表时间:
2015
期刊:
影响因子:
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作者:
E. Grädel;M. Grohe
通讯作者:
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DOI:
10.1109/lics.2019.8785682
发表时间:
2019
期刊:
2019 34th Annual ACM/IEEE Symposium on Logic in Computer Science (LICS)
影响因子:
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作者:
M. Grohe;D. Neuen
通讯作者:
D. Neuen
DOI:
10.1017/jsl.2018.33
发表时间:
2019
期刊:
The Journal of Symbolic Logic
影响因子:
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作者:
Grädel;Wied Pakusa
通讯作者:
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