INFINITE HILBERT CLASS FIELD TOWERS OVER CYCLOTOMIC FIELDS
Glasgow mathematical journal, Tome 50 (2008) no. 1, pp. 27-32

Voir la notice de l'article provenant de la source Cambridge University Press

We use a result of Y. Furuta to show that for almost all positive integers m, the cyclotomic field has an infinite Hilbert p-class field tower with high rank Galois groups at each step, simultaneously for all primes p of size up to about (log logm)1 + o(1). We also use a recent result of B. Schmidt to show that for infinitely many m there is an infinite Hilbert p-class field tower over for some p≥m0.3385 + o(1). These results have immediate applications to the divisibility properties of the class number of .
DOI : 10.1017/S0017089507003977
Mots-clés : 11N25, 11R17, 11R37
SHPARLINSKI, IGOR E. INFINITE HILBERT CLASS FIELD TOWERS OVER CYCLOTOMIC FIELDS. Glasgow mathematical journal, Tome 50 (2008) no. 1, pp. 27-32. doi: 10.1017/S0017089507003977
@article{10_1017_S0017089507003977,
     author = {SHPARLINSKI, IGOR E.},
     title = {INFINITE {HILBERT} {CLASS} {FIELD} {TOWERS} {OVER} {CYCLOTOMIC} {FIELDS}},
     journal = {Glasgow mathematical journal},
     pages = {27--32},
     year = {2008},
     volume = {50},
     number = {1},
     doi = {10.1017/S0017089507003977},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003977/}
}
TY  - JOUR
AU  - SHPARLINSKI, IGOR E.
TI  - INFINITE HILBERT CLASS FIELD TOWERS OVER CYCLOTOMIC FIELDS
JO  - Glasgow mathematical journal
PY  - 2008
SP  - 27
EP  - 32
VL  - 50
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003977/
DO  - 10.1017/S0017089507003977
ID  - 10_1017_S0017089507003977
ER  - 
%0 Journal Article
%A SHPARLINSKI, IGOR E.
%T INFINITE HILBERT CLASS FIELD TOWERS OVER CYCLOTOMIC FIELDS
%J Glasgow mathematical journal
%D 2008
%P 27-32
%V 50
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003977/
%R 10.1017/S0017089507003977
%F 10_1017_S0017089507003977

[1] 1.Baker, R. C. and Harman, G., Shifted primes without large prime factors, Acta Arith. 83 (1998), 331–361. Google Scholar | DOI

[2] 2.Banks, W. D. and Shparlinski, I. E., On values taken by the largest prime factor of shifted primes, J. Aust. Math. Soc. 82 (2007), 133–147. Google Scholar | DOI

[3] 3.Brumer, A., Ramification and class towers of number fields, Michigan Math. J. 12 (1965), 129–131. Google Scholar | DOI

[4] 4.Cassels, J. W. S. and Froehlich, A., Algebraic number theory (Academic Press, London 1967). Google Scholar

[5] 5.Furuta, Y., On class field towers and the rank of ideal class groups, Nagoya Math. J. 48 (1972), 147–157. Google Scholar | DOI

[6] 6.Gerth, F. III, On cyclic fields of odd prime degree p with infinite Hilbert p-class field towers, Canad. Math. Bull. 45 (2002), 86–88. Google Scholar | DOI

[7] 7.Gerth, F. III, A density result for some imaginary quadratic fields with infinite Hilbert 2-class field towers, Arch. Math. (Basel) 82 (2004), 23–27. Google Scholar | DOI

[8] 8.Hajir, F., On the growth of p-class groups in p-class field towers, J. Algebra 188 (1997), 256–271. Google Scholar | DOI

[9] 9.Halberstam, H. and Richert, H.-E., Sieve methods (Academic Press, London, 1974). Google Scholar

[10] 10.Lemmermeyer, F., Ideal class groups of cyclotomic number fields, II, Acta Arith. 84 (1998), 59–70. Google Scholar | DOI

[11] 11.Norton, K. K., On the number of restricted prime factors of an integer, I, Illinois J. Math. 20 (1976), 681–705. Google Scholar | DOI

[12] 12.Pomerance, C., ‘On the distribution of amicable numbers’, J. reine angew. Math., 293/294 (1977), 217–222. Google Scholar

[13] 13.Prachar, K., Primzahlverteilung (Springer-Verlag, 1957). Google Scholar

[14] 14.Schmidt, B., The field descent and class groups of CM-fields, Acta Arith. 119 (2005), 291–306. Google Scholar | DOI

[15] 15.Schoof, R., Infinite class field towers of quadratic fields, J. Reine Angew. Math. 372 (1986), 209–220. Google Scholar

[16] 16.Takeuchi, T., Notes on the class field towers of cyclic fields of degree l, Tôhoku Math. J. 31 (1979), 301–307. Google Scholar | DOI

Cité par Sources :