Nonstandard Generic Points
Wallet, Guy
Bull. Belg. Math. Soc. Simon Stevin, Tome 13 (2007) no. 5, p. 1033-1057 / Harvested from Project Euclid
Starting from the Zariski topology, a natural notion of nonstandard generic point is introduced in complex algebraic geometry. The existence of this kind of point is a strong form of the Nullstellensatz. This notion is connected with the classical concept of generic point in the spectrum $\text{Spec}({\cal A}_{n,\mathbb C})$ of the corresponding algebra ${\cal A}_{n,\mathbb C}$. The nonstandard affine space ${^*\mathbb C}^n$ appears as an affine unfolding of the geometric space $\text{Spec}({\cal A}_{n,\mathbb C})$. This affine space is the disjoint union of the sets whose elements are the nonstandard generic points of prime and proper ideals of ${\cal A}_{n,\mathbb C}$: this structure leads to the definition of algebraic points in ${^*\mathbb C}^n$. A natural extension to analytic points in ${^*\mathbb C}^n$ is given by Robinson's concept of generic point in local complex analytic geometry. The end of this paper is devoted to a generalization of this point of view to the real analytic case.
Publié le : 2007-01-14
Classification:  Generic point,  nonstandard analysis,  Nullstellensatz,  Zariski topology,  03H05,  14P05,  14P15,  14-99,  32B05,  32B10
@article{1170347824,
     author = {Wallet, Guy},
     title = {Nonstandard Generic Points},
     journal = {Bull. Belg. Math. Soc. Simon Stevin},
     volume = {13},
     number = {5},
     year = {2007},
     pages = { 1033-1057},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1170347824}
}
Wallet, Guy. Nonstandard Generic Points. Bull. Belg. Math. Soc. Simon Stevin, Tome 13 (2007) no. 5, pp.  1033-1057. http://gdmltest.u-ga.fr/item/1170347824/