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- Sun, Hae-sang
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Cuspidal class number of the tower of modular curves X-1(Np-n)
- Alternative Title
- Cuspidal class number of the tower of modular curves X-1(Np-n)
- Author(s)
- Sun, Hae-Sang
- Issued Date
- 2010-12
- Citation
- MATHEMATISCHE ANNALEN, v.348, no.4, pp.909 - 927
- Abstract
- We consider a cuspidal class number, which is the order of a subgroup of the full cuspidal divisor class group of X-1(Np-n) with p inverted iota N and n >= 1. By studying the second generalized Bernoulli numbers, we obtain results similar to ones (Ferrero and Washington in Ann Math (2) 109(2):377-395, 1979; Washington in Invent Math 49:87-97, 1978) about the relative class numbers of cyclotomic Z(p)-extension of an abelian number field
- Publisher
- SPRINGER
- ISSN
- 0025-5831
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