RT Journal Article T1 A Positivstellensatz For Rings Of Continuous-Functions A1 Gamboa Mutuberria, José Manuel AB A one page proof (using the real spectrum) of the following result: Let f, g : X ! R be a continuous functions on a topological space X, such that f is strictly positive on g−1(0).Then there exist continuous functions u, v and w such that (1 + v2)f = 1 + w2 + gu. PB Elsevier Science SN 0022-4049 YR 1987 FD 1987 LK https://hdl.handle.net/20.500.14352/64633 UL https://hdl.handle.net/20.500.14352/64633 DS Docta Complutense RD 10 abr 2025