Real Algebraic and Analytic Geometry
Submission: 2008, July 25.
We give a complete list of all quadratic modules and inclusions between them in the ring R[[X]] of formal power series in one variable X over an euclidean field R.
Keywords and Phrases: quadratic modules, preorderings, formal power, series rings.
Full text, 12p.: dvi 57k, ps.gz 153k, pdf 199k.