擦掉 发表于 2025-3-25 05:09:27
Invariant Class Groups in ,-Ramification Genus Theory,iori completely different, and one usually studies the corresponding invariants of . using several means. This chapter explains the two classical approaches: invariant classes formulas and genus theory.BOOR 发表于 2025-3-25 07:38:16
https://doi.org/10.1007/978-1-349-11098-8This chapter gives the definitions of the objects which will be used throughout this book. We are thus led to give the main general notations.描绘 发表于 2025-3-25 14:58:06
Basic Tools and Notations,This chapter gives the definitions of the objects which will be used throughout this book. We are thus led to give the main general notations.臭名昭著 发表于 2025-3-25 16:30:46
Reciprocity Maps Existence Theorems,nd commented so as to be used. This is so true that, as we will see several times, a classical proof consists in . local class field theory from global class field theory, as was initiated by Hasse and Schmidt in 1930, and in particular to base some local computations on global arguments (a typicalreception 发表于 2025-3-25 21:06:08
,Abelian Extensions with Restricted Ramification — Abelian Closure,cesses, will enable us to understand the structure of the maximal abelian extension of a number field . (Section 4 of the present chapter). Indeed, since any finite abelian extension of . is contained in a ray class field .(m)., we have ., where m ranges in the set of moduli of ..作茧自缚 发表于 2025-3-26 02:23:35
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