一维Gorenstein整环中的一些非主刚性理想
Some non-principal rigid ideals in Gorenstein domains of dimension one
AI总结:
该研究通过Codex发现的例子,构造出与Huneke和Wiegand猜想矛盾的一维Gorenstein整环中的刚性非主理想,同时Codex还证明了该猜想在等特征且嵌入维数不超过3时成立。
AI中文摘要:
我们讨论了一维(交换)Gorenstein整环中一个刚性非主理想的例子,该例子与C. Huneke和R. Wiegand的一个猜想相矛盾。该构造及其分析由Codex发现,是在其中一位作者提示下用于验证该猜想或找到反例时完成的。Codex还发现了该猜想在环为等特征且嵌入维数至多为3时的证明。
英文摘要:
We discuss an example of a rigid non-principal ideal in a one dimensional (commutative) Gorenstein domain, which contradicts a conjecture of C. Huneke and R. Wiegand. The construction and its analysis were discovered by Codex, when prompted by one of the authors to verify the conjecture or find a counterexample. A proof of the conjecture, also discovered by Codex, is presented when the ring is equicharacteristic and its embedding dimension is at most three.