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The non-p-part of the class number in a cyclotomic $$\mathbb{Z}_p$$-extension. (English) Zbl 0403.12007

##### MSC:
 11R18 Cyclotomic extensions 11R23 Iwasawa theory
Full Text:
##### References:
 [1] Ferrero, B., Washington, L.: The Iwasawa invariant $$\mu$$ p vanishes for abelian number fields, Ann. of Math. · Zbl 0443.12001 [2] Washington, L.: Class numbers and ? p -extension, Math. Ann.214, 177-193 (1975) · Zbl 0302.12007 · doi:10.1007/BF01352651
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