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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Corpos abelianos reais e forma quadrática / Real abelian fields and quadratic form

Garcia Tosti, Naísa Camila [UNESP] 17 February 2017 (has links)
Submitted by NAÍSA CAMILA GARCIA null (naisacamila@hotmail.com) on 2017-02-23T13:24:13Z No. of bitstreams: 1 Dissertação de Mestrado Naísa.pdf: 926270 bytes, checksum: e0ef770d876850618bb4fff10a0da639 (MD5) / Approved for entry into archive by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br) on 2017-03-02T14:21:45Z (GMT) No. of bitstreams: 1 tosti_ncg_me_sjrp.pdf: 926270 bytes, checksum: e0ef770d876850618bb4fff10a0da639 (MD5) / Made available in DSpace on 2017-03-02T14:21:45Z (GMT). No. of bitstreams: 1 tosti_ncg_me_sjrp.pdf: 926270 bytes, checksum: e0ef770d876850618bb4fff10a0da639 (MD5) Previous issue date: 2017-02-17 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O propósito deste trabalho é estudar alguns corpos abelianos, mais especificamente, as extensões reais maximais contidas nos corpos ciclotômicos de grau 8 e, os subcorpos dos corpos ciclotômicos Q(ζ_7) e Q(ζ_17). Em tais corpos, determinamos base integral, discriminante, grupo de Galois e construimos submódulos de posto máximo do anel dos inteiros algébricos com sua respectiva representação geométrica. Além disso, calculamos a densidade de centro destes reticulados. / The purpose of this work is to investigate some Abelian Number Fields, especifically the maximal extension contained in the cyclotomic fields of degree 8, and the subfields of the cyclotomic fields Q(ζ_7) and Q(ζ_17). In such fields, we compute: integral bases, discriminant, Galois group and submoduli with maximal rank in the ring of algebraic integers, its geometrical realization with the respective center density.
2

Representação geométrica em Q(zeta_pq)

Ramos, Giovana Morali [UNESP] 10 December 2005 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:26:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-12-10Bitstream added on 2014-06-13T20:08:00Z : No. of bitstreams: 1 ramos_gm_me_sjrp.pdf: 353629 bytes, checksum: 1030312b97bd0bb7f95093162b227e48 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O objetivo principal deste trabalho é estudar a densidade de centro de reticulados obtidos por meio do Método de Minkowski em subcorpos de Q(?pq), com p e q primos ímpares distintos e satisfazendo a condição oq(p) = op(q) = 1 (mod 2). O cálculo da densidade de centro é feito a partir do discriminante do corpo, da norma do ideal e da minimização da forma traço. / This work aims at studying the center density of the lattices got through the Minkowski's Method in subfields of Q(?pq), p and q prime number and oq(p) = op(q) = 1 (mod 2). The calcule of the center density is done using the discriminant of the field, the norm of the ideal and the minimization of trace form.

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