Titlebook: Cyclotomic Fields I and II; Serge Lang Textbook 1990Latest edition Springer Science+Business Media New York 1990 Cohomology.Prime.algebra.

增強(qiáng)

Behaviour, Evolution and Life HistoriesWe shall now study Iwasawa’s theory concerning projective limits in Z.-extensions.

招致

Epidural-Space

F. Bernhard Kraus,Robin F.A. MoritzIn this chapter we prove that the Iwasawa congruences cannot be satisfied, thus giving a bound for the divisibility of Bernoulli numbers with characters, and hence a bound for the divisibility of the corresponding class numbers with respect to certain primes.

Control-Group

The Elephant’s I: Looking for Abu’l AbbasClassical results of Kummer give bounds for certain class numbers and estimate, for instance, the plus part in terms of the minus part for cyclotomic fields.

分發(fā)

Intervention, humility and animal integrityThe Stickelberger theorem giving the factorization of Gauss sums, the Gross-Koblitz formula, and the Davenport-Hasse distribution relations will be combined to interpret Gauss sums as universal odd distributions (Yamamoto’s theorem).

ALLAY

Character Sums,Character sums occur all over the place in many different roles. In this chapter they will be used at once to represent certain principal ideals, thus giving rise to annihilators in a group ring for ideal classes in cyclotomic fields.

詞匯表

BLOT

Iwasawa Theory and Ideal Class Groups,We shall now study Iwasawa’s theory concerning projective limits in Z.-extensions.

tattle

Kummer Theory over Cyclotomic Zp-extensions,In the last chapter we studied the ideal class groups in a Z.-extension of a number field. Here we shall consider especially the cyclotomic Z.-extension, and then Kummer extensions above it, as in Iwasawa [Iw 12], obtained by adjoining .th roots of units, .-units, and ideal classes of .-power order.

constitute

,The Ferrero—Washington Theorems,In this chapter we prove that the Iwasawa congruences cannot be satisfied, thus giving a bound for the divisibility of Bernoulli numbers with characters, and hence a bound for the divisibility of the corresponding class numbers with respect to certain primes.