01366nam a2200361 i 450099100148756970753620020507194343.0930510s1990 it ||| | eng 0887741532b10854174-39ule_instLE01313022ExLDip.to Matematicaeng512.74AMS 11EAMS 11E45AMS 13K05AMS 14-02Ojanguren, Manuel441268The witt group and the problem of Luroth /Manuel OjangurenPisa :ETS (Editrice Tecnico Scientifica),199096 p. ;24 cm.Dottorato di ricerca in matematicaAnalytic theoryRelated ringsWitt vectors.b1085417414-02-1928-06-02991001487569707536LE013 11E OJA11 C.1 (1990)12013000128399le013-E0.00-l- 01010.i1096584128-06-02LE013 11E OJA11 C.2 (1990)22013000128405le013-E0.00-l- 01010.i1096585328-06-02LE013 11E OJA11 C.3 (1990)12013000229591le013gE15.00-l- 00000.i1587758914-02-19Witt group and the problem of Luroth918538UNISALENTOle01301-01-93ma -engit 42