The combinatorics of Farey words and their traces
The combinatorics of Farey words and their traces
复制标题
法雷词的组合学及其踪迹
DOI:
10.1112/jlms.12412
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
J. Schillewaert
中科院分区:
文献类型:
--
作者:
A. Elzenaar;G. Martin;J. Schillewaert
We introduce a family of 3-variable"Farey polynomials"that are closely connected with the geometry and topology of $3$-manifolds and orbifolds as they can be used to produce concrete realisations of the boundaries and local coordinates for one-complex-dimensional deformation spaces of Kleinian groups. As such, this family of polynomials has a number of quite remarkable properties. We study these polynomials from an abstract combinatorial viewpoint, including a recursive definition extending that which is known in the literature for the special case of manifolds, even beyond what the geometry predicts. We also present some intriguing examples and conjectures which we would like to bring to the attention of researchers interested in algebraic combinatorics and hypergeometric functions. The results in this paper additionally provide a practical approach to various classification problems for rank-two subgroups of PSL(2,C) since they, together with other recent work of the authors, make it possible to provide certificates that certain groups are discrete and free, and effective ways to identify relators.
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DOI:
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发表时间:
2013
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影响因子:
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作者:
Toshitaka Nagai;Takayoshi Ogawa;望月拓郎;Ken'ichi Ohshika;T. Ohsawa;Goo Ishikawa;乙部厳己;大島 拓;四方哲也;Ken'ichi Ohshika
通讯作者:
Ken'ichi Ohshika
DOI:
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发表时间:
2003
期刊:
London Math.Soc.Lect.Note Series 299
影响因子:
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作者:
H.Akiyoshi;M.Sakuma;M.Wada;Y.Yamashita
通讯作者:
Y.Yamashita
影响因子:
1.3
作者:
Akiyoshi Hirotaka;Ohshika Ken’ichi;Parker John;Sakuma Makoto;Yoshida Han
通讯作者:
Yoshida Han
DOI:
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发表时间:
2003
期刊:
Conformal Geometry and Dynamics 7
影响因子:
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作者:
H.Miyachi
通讯作者:
H.Miyachi
DOI:
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