Homology at infinity; fractal geometry of limiting symbols for modular subgroups
Homology at infinity; fractal geometry of limiting symbols for modular subgroups
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无穷远同调;
DOI:
10.1016/j.top.2007.03.004
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
B. Stratmann
中科院分区:
文献类型:
--
作者:
M. Kesseböhmer;B. Stratmann
In this paper we use fractal geometry to investigate boundary aspects of the first homology group for finite coverings of the modular surface. We obtain a complete description of algebraically invisible parts of this homology group. More precisely, we first show that for any modular subgroup the geodesic forward dynamic on the associated surface admits a canonical symbolic representation by a finitely irreducible shift space. We then use this representation to derive an `almost complete' multifractal description of the higher--dimensional level sets arising from Manin--Marcolli's limiting modular symbols.
DOI:
10.1007/0-387-22081-x_7
发表时间:
2020-05
期刊:
An Introduction to Probabilistic Number Theory
影响因子:
--
作者:
Don Redmond
通讯作者:
Don Redmond