Abstract
The class NLGF of nice local-global fields and its three subclasses are introduced. The classes are stated to be recursively axiomatizable, and we establish a criterion of being elementarily embeddable for fields in mN LGF, fNLGF, and uNLGF. As a consequence, an elementary theory for the field of totally M-adic numbers is proved decidable for any finite set M of primes.
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References
Yu. L. Ershov, “Relative regular closedness and π-valuations,”Algebra Logika,31, No. 6, 592–623 (1992).
Yu. L. Ershov, “Elementary regular rings,”Algebra Logika,32, No. 4, 387–401 (1993).
Yu. L. Ershov, “MaximalRC π-fields,”Algebra Logika,32, No. 5, 497–518 (1993).
Yu. L. Ershov, “RC *-fields,”Algebra Logika,33, No. 4, 367–386 (1994).
Yu. L. Ershov, “Fields with continuous local elementary properties. I,”Algebra Logika,33, No. 6, 628–653 (1994).
Yu. L. Ershov, “Fields with continuous local elementary properties. II,”Algebra Logika,34, No. 3, 262–273 (1995).
J. Ax, “The elementary theory of finite fields,”Ann. Math.,88, 239–271 (1968).
U.-M. Künzi, “Multiply pseudo-p-adically closed fields,”Cont. Math.,131, 463–468 (1992).
L. Fuchs,Partially Ordered Algebraic Systems, Pergamon Press, Oxford (1963).
Yu. L. Ershov, “Projectivity of absolute Galois groups ofRC ξ *-fields,” inProc. III Intern. Conf. Algebra, Krasnoyarsk (1993), pp. 63–80.
A. Adler and K. Kiefe, “Pseudofinite fields, procyclic fields and model-completion,”Pacific J. Math.,62, 305–310 (1976).
A. Macintyre, “Model-completeness,” inHandbook of Mathematical Logic, North-Holland, Amsterdam (1977), pp. 139–180.
Yu. L. Ershov, “Free Δ*,”Algebra Logika,35, No. 2, 154–172 (1996).
B. Green, F. Pop, and P. Roquette, “On Rumely's local-global principle,”Jahrerbericht der Deutsche Mathematikervereininung,97, 43–74 (1995).
F. Pop, “Embedding problems over large fields,” to appear inAnn. Math.
Yu. L. Ershov, “Algorithmic problems in the theory of fields (positive aspects),” inHandbook of Mathematical Logic. III [in Russian], Nauka, Moscow (1982), pp. 269–353.
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Translated fromAlgebra i Logika, Vol. 35, No. 4, pp. 411–423, July–August, 1996.
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Ershov, Y.L. Nice local-global fields. I. Algebr Logic 35, 229–235 (1996). https://doi.org/10.1007/BF02367024
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DOI: https://doi.org/10.1007/BF02367024