{ "id": "math/0506519", "version": "v4", "published": "2005-06-24T21:50:15.000Z", "updated": "2010-07-20T00:57:46.000Z", "title": "Geometric Galois Theory, Nonlinear Number Fields and a Galois Group Interpretation of the Idele Class Group", "authors": [ "T. M. Gendron", "A. Verjovsky" ], "comment": "This is the revised version of an article which appeared by the same name in the International Journal of Mathematics, Vol. 16, No. 6 (July 2005)", "journal": "International Journal of Mathematics, Vol. 16, No. 6 (July 2005)", "categories": [ "math.NT", "math.CV" ], "abstract": "This paper concerns the description of holomorphic extensions of algebraic number fields. We define a hyperbolized adele class group for every number field K Galois over Q and consider the Hardy space H[K] of graded-holomorphic functions on the hyperbolized adele class group. We show that the hyperplane N[K] in the projectivization PH[K] defined by the functions of non-zero trace possesses two partially-defined operations + and x, with respect to which there is canonical monomorphism of K into N[K]. We call N[K] a nonlinear field extension of K. We define Galois groups for nonlinear fields and show that Gal(N[L]/N[K]) is isomorphic to Gal(L/K) if L/K is Galois. If Q^{ab} denotes the maximal abelian extension of Q, C(Q) the idele class group and $\\bar{N}[Q^{ab}]=PH[K] is the full projectivization, then there are embeddings of C(Q) into Gal_{+}(\\bar{N}[Q^{ab}]/Q) and Gal_{x}(\\bar{N}[Q^{ab}]/Q), the \"Galois groups\" of automorphisms preserving + resp. x only.", "revisions": [ { "version": "v4", "updated": "2010-07-20T00:57:46.000Z" } ], "analyses": { "subjects": [ "11R56", "11R37", "11R32", "57R30" ], "keywords": [ "idele class group", "nonlinear number fields", "geometric galois theory", "galois group interpretation", "hyperbolized adele class group" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......6519G" } } }