Talk:Novikov ring

Laurent series
I don't think these series are Laurent series for two reasons: the powers do not need to be bounded below, and they do not need to be integers. What do the sources say? Deltahedron (talk) 12:44, 8 February 2014 (UTC)


 * You're correct. The source simply defines a ring by saying the elements are of the form described in the article and define the multiplication explicitly. This is not the best way since we want to, for example, $$\mathbf{Z}[\Gamma]$$ to be a subring of the Novikov ring. cf. -- Taku (talk) 13:05, 8 February 2014 (UTC)