Dependence Logic with a Majority Quantifier
Dependence Logic with a Majority Quantifier
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带有多数量词的依赖逻辑
DOI:
10.1007/s10849-015-9218-3
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
H. Vollmer
中科院分区:
文献类型:
--
作者:
Arnaud Durand;Johannes Ebbing;J. Kontinen;H. Vollmer
We study the extension of dependence logic D\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {D}$$\end{document} by a majority quantifier M\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathsf{M}$$\end{document} over finite structures. We show that the resulting logic is equi-expressive with the extension of second-order logic by second-order majority quantifiers of all arities. Our results imply that, from the point of view of descriptive complexity theory, D(M)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {D}(\mathsf{M})$$\end{document} captures the complexity class counting hierarchy. We also obtain characterizations of the individual levels of the counting hierarchy by fragments of D(M)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {D}(\mathsf{M})$$\end{document}.
影响因子:
0.7
作者:
P. Lohmann;H. Vollmer
通讯作者:
H. Vollmer