20200526 04:30:56 0500  received badge  ● Popular Question (source) 
20180316 19:03:27 0500  received badge  ● Notable Question (source) 
20171210 16:05:33 0500  received badge  ● Nice Question (source) 
20171210 16:04:08 0500  received badge  ● Popular Question (source) 
20170213 14:49:17 0500  received badge  ● Teacher (source) 
20170213 06:38:32 0500  answered a question  Code error in sagemath SageMath code is written in Python (with a few extensions by the preparser). Your code does not resemble Python.
Indentation matters, no 
20170210 05:54:37 0500  asked a question  Conversion fraction field(QQ[X]) to fraction field(ZZ[X]) How to I convert an element of the fraction field of QQ[X] to the fraction field of ZZ[X]? In my use case, 
20170104 07:40:30 0500  commented answer  Lifting a matrix from $\mathbb{Q}[Y]/(Y1)$ Thank you, the workaround works for me. Is the underlying problem a known bug or shall I create a ticket? 
20170103 23:34:11 0500  asked a question  Linear Combination for Resultant Let I need to compute polynomials Pari has a function Nevertheless, I have a few questions:

20161215 04:23:52 0500  asked a question  What is _SAGE_VAR_(0)? Using SageMath 7.4, I do the following: I am wondering what 
20161112 23:47:52 0500  asked a question  Lifting a matrix from $\mathbb{Q}[Y]/(Y1)$ I have a matrix in $\mathbb{Q}[Y]/(Y1)$ and want to lift it to $\mathbb{Q}[Y]$, however, I get an error: Lifting single elements instead of a matrix works: Lifting a matrix from the integers modulo a prime works also: So how do I lift the matrix? Building a new matrix by hand und lifting componentwise seems to be an option; however, I think that it is somewhat ugly. 
20161003 06:59:24 0500  commented answer  How to extend ring homomorphism to polynomial ring (or its fraction field) I now have performance problems with my above solution: Any ideas? 
20160927 01:24:43 0500  commented answer  How to extend ring homomorphism to polynomial ring (or its fraction field) It worked once, but then my code came accross another example and UniqueRepresentation gave me problems. So I ended up avoiding 
20160926 22:28:44 0500  received badge  ● Supporter (source) 
20160926 22:28:28 0500  received badge  ● Scholar (source) 
20160926 22:28:23 0500  commented answer  How to extend ring homomorphism to polynomial ring (or its fraction field) Thank you, the shortcut was exactly what I need. 
20160926 12:02:31 0500  received badge  ● Student (source) 
20160926 09:11:42 0500  asked a question  How to extend ring homomorphism to polynomial ring (or its fraction field) I have a homomorphism from a number field
I now work in the polynomial ring
How do I get a homomorphism from
Same question about the fraction field of
Is there a more elegant way than calling
So basically, I'd like to extend my homomorphism 