Lam, Tsit-Yuen, 1942- Orderings, valuations and quadratic forms / By t. y. lam - 143 páginas - Conference board of the mathematical sciences. regional conference series in mathematics ; no. 52 . ISBN: 0-8218-0702-1 Subjects--Topical Terms: Cuerpos ordenadosFormas cuadráticasTeoría de valoración LC Class. No.: QA247 / L32