IMO 1971Problem sheetInternational mathematics competition for pre-university students, held annually since 1959. Six problems over two days.00
IMO 1986Problem sheetInternational mathematics competition for pre-university students, held annually since 1959. Six problems over two days.00
IMO 1992Problem sheetInternational mathematics competition for pre-university students, held annually since 1959. Six problems over two days.00
IMO 2000Problem sheetInternational mathematics competition for pre-university students, held annually since 1959. Six problems over two days.00
A non-Noetherian local ring with finitely generated maximal idealNotesA complete local ring with a finitely generated maximal ideal is Noetherian. Drop completeness and it fails: an ultraproduct construction gives a non-Noetherian local ring whose maximal ideal is principal.00