Timeline for Flatness of a simple ring extension
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Jun 11, 2015 at 17:09 | comment | added | user237522 | @abx: Thanks. From your point of view you are right; however, I have in mind a specific example in which it is not clear if $B$ is flat over $A$ or not. So maybe my question is misleading. | |
| S Jun 11, 2015 at 6:53 | history | suggested | user 1 | CC BY-SA 3.0 |
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| Jun 11, 2015 at 6:27 | review | Suggested edits | |||
| S Jun 11, 2015 at 6:53 | |||||
| Jun 10, 2015 at 4:40 | comment | added | abx | I don't understand your question. If you take $A=\mathbb{C}[t^2-1,t(t^2-1)]\subset B= \mathbb{C}[t]$ (the normalization of an ordinary double point), aren't all your hypotheses fulfilled? | |
| Jun 9, 2015 at 20:58 | history | asked | user237522 | CC BY-SA 3.0 |