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St. Petersburg Mathematical Journal

This journal is a cover-to-cover translation into English of Algebra i Analiz, published six times a year by the mathematics section of the Russian Academy of Sciences.

ISSN 1547-7371 (online) ISSN 1061-0022 (print)

The 2020 MCQ for St. Petersburg Mathematical Journal is 0.68.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Infinitesimal criterion for flatness of projective morphism of schemes
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by N. V. Timofeeva
Translated by: the author
St. Petersburg Math. J. 26 (2015), 131-138
DOI: https://doi.org/10.1090/S1061-0022-2014-01334-9
Published electronically: November 21, 2014

Abstract:

A generalization of the well-known criterion for flatness of a projective morphism of Noetherian schemes involving the Hilbert polynomial is given for the case of a nonreduced base of the morphism.
References
  • Robin Hartshorne, Algebraic geometry, Graduate Texts in Mathematics, No. 52, Springer-Verlag, New York-Heidelberg, 1977. MR 0463157
  • James S. Milne, Étale cohomology, Princeton Mathematical Series, No. 33, Princeton University Press, Princeton, N.J., 1980. MR 559531
  • Hideyuki Matsumura, Commutative ring theory, Cambridge Studies in Advanced Mathematics, vol. 8, Cambridge University Press, Cambridge, 1986. Translated from the Japanese by M. Reid. MR 879273
  • M. F. Atiyah and I. G. Macdonald, Introduction to commutative algebra, Addison-Wesley Publishing Co., Reading, Mass.-London-Don Mills, Ont., 1969. MR 0242802
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Bibliographic Information
  • N. V. Timofeeva
  • Affiliation: Yaroslavl′ State University, Sovetskaya str. 14, Yaroslavl′150000, Russia
  • Email: ntimofeeva@list.ru
  • Received by editor(s): December 18, 2012
  • Published electronically: November 21, 2014
  • Additional Notes: The author was partially supported by the Institute of Mathematics “Simion Stoilow”  of Romanian Academy (IMAR) (partnership IMAR – BITDEFENDER) during the author’s stay as invited professor, June – July 2011.
  • © Copyright 2014 American Mathematical Society
  • Journal: St. Petersburg Math. J. 26 (2015), 131-138
  • MSC (2010): Primary 14B25; Secondary 13D10, 14A15
  • DOI: https://doi.org/10.1090/S1061-0022-2014-01334-9
  • MathSciNet review: 3234808