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math.AC2008★ 12 cited
Uppers to zero in polynomial rings and Prüfer-like domains
Gyu Whan Chang, Marco Fontana
Let be an integral domain and an indeterminate over . It is well known that (a) is quasi-Prüfer (i.e, its integral closure is a Prüfer domain) if and only if each up…
math.AC2007
Uppers to zero and semistar operations in polynomial rings
Gyu Whan Chang, Marco Fontana
Given a stable semistar operation of finite type on an integral domain , we show that it is possible to define in a canonical way a stable semistar operation of finite t…