Top network posts

• 24 How much of a group $G$ is determined by the category of $G$-sets?
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• 17 Valuation ring lying between a valuation ring and its fraction field
• 14 Is a ring of integers necessarily Noetherian?
• 11 $\mathbb{R}$ with usual $+$, but not multiplication
• 10 What kind of arithmetic information does the ring of integers in an infinite extension carry?
• 10 Recognizing Principal Ideals
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