Cohen ring
WebA Noetherian local ring is called Cohen-Macaulay if it is Cohen-Macaulay as a module … Webc') Another, stunningly geometric, example of a non Cohen-Macaulay ring is the ring A = …
Cohen ring
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WebMar 24, 2024 · Also called Macaulay ring, a Cohen Macaulay ring is a Noetherian commutative unit ring in which any proper ideal of height contains a sequence , ..., of elements (called a ring regular sequence such that for all , ..., , the residue class of in the quotient ring is a non-zero divisor.. If , ..., are indeterminates over a field , the above … Web代数学において、コーエン環 (Cohen ring) は体または極大イデアルが p で生成される 混標数 (英語版) (,) の完備離散付値環である。 コーエン環は完備ネーター局所環に対する コーエンの構造定理 (英語版) において使われる。. 関連項目. ノルム体 (Norm field); 参考文献. Cohen, I. S. (1946), “On the ...
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WebJul 31, 2024 · A Cohen ring is a field or a complete characteristic zero discrete valuation ring whose maximal ideal is generated by a prime number p (equal to the characteristic of the residue field). In both cases, the hardest part of Cohen's proof is to show that the complete Noetherian local ring contains a coefficient ring ... WebMaximal Cohen-Macaulay Modules over Cohen-Macaulay Rings. Search within full text. Get access. Cited by 171. Y. Yoshino. Publisher: Cambridge University Press. Online publication date: January 2010. Print publication year: 1990. Online ISBN: 9780511600685.
WebJun 4, 2024 · Examples of Cohen–Macaulay rings. A regular local ring (and, in general, …
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