Riv. Mat. Univ. Parma, Vol. 11, No. 1, 2020

Francesca Acquistapace [a] and Fabrizio Broglia [a]

From complex to real analytic geometry

Pages: 1-8
Received: 10 January 2019
Accepted in revised form: 30 January 2019
Mathematics Subject Classification (2010): 14P15, 58A07, 32C25.
Keywords: Real analytic space, Global Nullstellensatz, \(17^{th}\) Hilbert problem.
Authors address:
[a]: University of Pisa, Dipartimento di Matematica, Largo Pontecorvo 5, Pisa, 56127, Italy

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Abstract: In this survey paper we look at the emergence of a good notion of real analytic space. Then we consider the global Nullstellensätze that have been proved both in the complex and in the real case. Finally we look at relations between a real global Nullstellensatz and Hilbert's \(17^{th}\) problem for global analytic functions and we give some conclusions.

References
[ABF1]
F. Acquistapace, F. Broglia and J. F. Fernando, On Hilbert's 17th problem and Pfister's multiplicative formulae for the ring of real analytic functions, Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 13 (2014), no. 2, 333-369. MR3235518
[ABF2]
F. Acquistapace, F. Broglia and J. F. Fernando, On the Nullstellensätze for Stein spaces and C-analytic sets, Trans. Amer. Math. Soc. 368 (2016), no. 6, 3899-3929. MR3453361
[ABFR]
F. Acquistapace, F. Broglia, J. F. Fernando and J. M. Ruiz, On the finiteness of Pythagoras numbers of real meromorphic functions, Bull. Soc. Math. France 138 (2010), no. 2, 231-247. MR2679039
[ABS]
F. Acquistapace, F. Broglia and M. Shiota, The finiteness property and Lojasiewicz inequality for global semianalytic sets, Adv. Geom. 5 (2005), no. 3, 377-390. MR2154832
[ABR]
C. Andradas, L. Bröcker and J. M. Ruiz, Constructible sets in real geometry, Ergeb. Math. Grenzgeb (3), 33, Springer-Verlag, Berlin, 1996. MR1393194
[Ar]
E. Artin, Über die Zerlegung definiter Funktionen in Quadratev, Abh. Math. Sem. Univ. Hamburg 5 (1927), no. 1, 100-115. MR3069468
[dB1]
P. de Bartolomeis, Algebre di Stein nel caso reale, Rend. Accad. Naz. XL (5) 1/2 (1975/76), 105-144. MR0499305
[dB2]
P. de Bartolomeis, Una nota sulla topologia delle algebre reali coerenti, Boll. Un. Mat. Ital. (5) 13A (1976), no. 1, 123-125. MR0425153
[BCR]
J. Bochnak, M. Coste and M.-F. Roy, Real algebraic geometry, Ergeb. Math. Grenzgeb. (3), 36, Springer-Verlag, Berlin, 1998. MR1659509
[BKS]
J. Bochnak, W. Kucharz and M. Shiota, On equivalence of ideals of real global analytic functions and the 17th Hilbert problem, Invent. Math. 63 (1981), no. 3, 403-421. MR0620677
[BC1]
F. Bruhat and H. Cartan, Sur les composantes irréductibles d'un sous-ensemble analytique-réel, C. R. Acad. Sci. Paris 244 (1957), 1123-1126. MR0088528
[BC2]
F. Bruhat and H. Cartan, Sur la structure des sous-ensembles analytiques réels, C. R. Acad. Sci. Paris 244 (1957), 988-990. MR0086108
[C1]
H. Cartan, Séminaires, Ecole Normale Supérieure 1951/52 et 1953/54.
[C2]
H. Cartan, Variétés analytiques réelles et variétés analytiques complexes, Bull. Soc. Math. France 85 (1957), 77-99. MR0094830
[C3]
H. Cartan, Sur les fonctions de plusieurs variables complexes: les espaces analytiques, 1960 Proc. Internat. Congress Math., Cambridge Univ. Press, New York, 1958, 33-52. MR0117763
[Fo]
O. Forster, Primärzerlegung in Steinschen Algebren, Math. Ann. 154 (1964), 307-329. MR0165387
[Gra]
H. Grauert, On Levi's problem and the imbedding of real-analytic manifolds, Ann. of Math. 68 (1958), 460-472. MR0098847
[Gr]
A. Grothendieck, Techniques de construction en géométrie analytique. II. Généralités sur les espaces annelés et les espaces analytiques, Séminaire Henri Cartan, 13 (1960-1961), no. 1, Talk no. 9, pp. 14. Article
[H]
D. Hilbert, Ueber die vollen Invariantensysteme, Math. Ann. 42 (1893), no. 3, 313-373. MR1510781
[Jw]
P. Jaworski, Extensions of orderings on fields of quotients of rings of real analytic functions, Math. Nachr. 125 (1986), 329-339. MR0847371
[Las]
G. Lassalle, Sur le théorème des zéros différentiable, Singularités d'applications différentiables (Sém., Plans-sur-Bex, 1975), Lecture Notes in Math., 535, Springer, Berlin, 1976, 70-97. MR0473220
[R1]
J.-J. Risler, Une caractérisation des idéaux des variétés algébriques réelles, C. R. Acad. Sci. Paris Sér. A-B 271 (1970), A1171-A1173. MR0274437
[R2]
J.-J. Risler, Le théorème des zéros en géométries algébrique et analytique réelles, Bull. Soc. Math. France 104 (1976), no. 2, 113-127. MR0417167
[Rz]
J. M. Ruiz, On Hilbert's 17th problem and real Nullstellensatz for global analytic functions, Math. Z. 190 (1985), no. 3, 447-454. MR0806902
[T]
A. Tognoli, Proprietà globali degli spazi analitici reali, Ann. Mat. Pura Appl. (4) 75 (1967), 143-218. MR0236418
[WB]
H. Whitney and F. Bruhat, Quelques propiétés fondamentales des ensembles analytiques-réels, Comment. Math. Helv. 33 (1959), 132-160. MR0102094


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