The complexity of solution sets to equations in hyperbolic groups
The complexity of solution sets to equations in hyperbolic groups
复制标题
双曲群方程解集的复杂度
DOI:
10.1007/s11856-021-2232-z
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发表时间:
2021
影响因子:
1
通讯作者:
Ciobanu L
中科院分区:
文献类型:
--
作者:
Ciobanu L
We show that the full set of solutions to systems of equations and inequations in a hyperbolic group, as shortlex geodesic words (or any regular set of quasigeodesic normal forms), is an EDT0L language whose specification can be computed inNSPACE(n2logn) for the torsion-free case andNSPACE(n4logn) in the torsion case. Furthermore, in the presence of effective quasi-isometrically embeddable rational constraints, we show that the full set of solutions to systems of equations in a hyperbolic group remains EDT0L.Our work combines the geometric results of Rips, Sela, Dahmani and Guirardel on the decidability of the existential theory of hyperbolic groups with the work of computer scientists including Plandowski, Jeż, Diekert and others onPSPACEalgorithms to solve equations in free monoids and groups using compression, and involves an intricate language-theoretic analysis.
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DOI:
10.1007/s00039-003-0425-8
发表时间:
1991
期刊:
Geometric & Functional Analysis GAFA
影响因子:
--
作者:
J. Alonso;T. Brady;D. Cooper;V. Ferlini;Lustig;M. Mihalik;M. Shapiro;H. Short
通讯作者:
H. Short
DOI:
10.4230/lipics.icalp.2017.95
发表时间:
2022
期刊:
J. Comput. Syst. Sci.
影响因子:
--
作者:
Artur Jeż
通讯作者:
Artur Jeż
影响因子:
1
作者:
V. Diekert;Claudio Gutiérrez;C. Hagenah
通讯作者:
C. Hagenah
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Nicholas W. M. Touikan
通讯作者:
Nicholas W. M. Touikan
DOI:
--
发表时间:
2018
期刊:
Language and Automata Theory and Applications
影响因子:
--
作者:
A. Bishop;M. Elder
通讯作者:
M. Elder