Signed counts of real simple rational functions
Signed counts of real simple rational functions
复制标题
实简单有理函数的有符号计数
DOI:
10.1007/s10801-019-00906-6
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发表时间:
--
影响因子:
0.8
通讯作者:
Johannes Rau
中科院分区:
文献类型:
--
作者:
Boulos El Hilany;Johannes Rau
We study the problem of counting real simple rational functionswith prescribed ramification data (i.e. a particular class of oriented real Hurwitz numbers of genus 0). We introduce a signed count of such functions which is independent of the position of the branch points, thus providing a lower bound for the actual count (which does depend on the position). We prove (non-)vanishing theorems for these signed counts and study their asymptotic growth when adding further simple branch points. The approach is based on Itenberg and Zvonkine (Comment Math Helv 93(2), 441–474, 2018) which treats the polynomial case.
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DOI:
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发表时间:
1992
期刊:
影响因子:
--
作者:
S. Barannikov
通讯作者:
S. Barannikov
影响因子:
1.4
作者:
Johannes Rau
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Johannes Rau
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
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DOI:
--
发表时间:
2002
期刊:
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作者:
A. Alexeevski;S. Natanzon
通讯作者:
S. Natanzon
影响因子:
3.1
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Jean
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