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| 2014-08-30 17:32:36 +0200 | commented answer | Units in a quotient of a polynomial ring Thank you for your help. That is exactly the problem I have been facing. I am able to input the ring but unable to make sage do any useful calculations with it. So in a way it is useless. I am trying to find a way around this problem but I don't see how to this yet. |
| 2014-08-30 17:28:15 +0200 | answered a question | Units in a quotient of a polynomial ring Thank you for your help. That is exactly the problem I have been facing. I am able to input the ring but unable to make sage do any useful calculations with it. So in a way it is useless. I am trying to find a way around this problem but I don't see how to this yet. |
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| 2014-08-30 16:47:58 +0200 | asked a question | Units in a quotient of a polynomial ring How can I do calculations in a quotient ring using sage? For example, I would like to find all the units (or at least count the number of units) in this quotient ring. Z_4[x]/(x^4+1, 2+2x). (Here Z_4 is the ring of integers mod 4.) Is that possible? I could not find any useful documentation for quotients of polynomial rings that are not a PID. Any help would be greatly appreciated. Thank you. |
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