• Igor R. Shafarevich
Part of the Encyclopaedia of Mathematical Sciences book series (EMS, volume 11)


The notion of categories, together with certain notions related to them, forms a mathematical language having a specific nature as compared with the standard language of set theory, and imparting a somewhat different character to mathematical constructions. Our description starts with an example.


Abelian Group Topological Space Marked Point Free Product Formal Power Series 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Igor R. Shafarevich
    • 1
  1. 1.Steklov Mathematical InstituteRussian Academy of ScienceMoscowRussia

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