Ask Your Question

nebuckandazzer's profile - activity

2021-07-31 19:25:26 +0200 received badge  Nice Question (source)
2021-06-10 10:19:04 +0200 received badge  Famous Question (source)
2021-04-09 14:56:14 +0200 received badge  Notable Question (source)
2021-04-09 14:56:14 +0200 received badge  Popular Question (source)
2021-03-16 03:04:52 +0200 received badge  Famous Question (source)
2021-02-23 11:42:37 +0200 received badge  Famous Question (source)
2020-11-23 09:24:56 +0200 received badge  Notable Question (source)
2020-07-28 21:24:23 +0200 received badge  Notable Question (source)
2020-07-28 21:24:23 +0200 received badge  Popular Question (source)
2020-07-25 20:17:27 +0200 received badge  Notable Question (source)
2020-02-18 15:28:45 +0200 received badge  Notable Question (source)
2019-10-04 01:58:34 +0200 received badge  Famous Question (source)
2019-08-29 18:31:32 +0200 received badge  Notable Question (source)
2019-08-29 18:31:32 +0200 received badge  Popular Question (source)
2019-08-29 15:40:10 +0200 received badge  Popular Question (source)
2019-05-15 05:28:55 +0200 received badge  Nice Question (source)
2019-03-11 00:10:26 +0200 received badge  Popular Question (source)
2019-02-07 05:22:10 +0200 received badge  Notable Question (source)
2019-02-07 05:22:10 +0200 received badge  Popular Question (source)
2018-12-27 10:57:17 +0200 received badge  Popular Question (source)
2018-08-18 09:00:18 +0200 received badge  Famous Question (source)
2018-05-23 23:10:34 +0200 received badge  Popular Question (source)
2018-05-23 23:10:34 +0200 received badge  Notable Question (source)
2017-12-30 17:17:52 +0200 received badge  Notable Question (source)
2017-12-25 13:29:31 +0200 received badge  Notable Question (source)
2017-12-06 09:08:21 +0200 received badge  Nice Question (source)
2017-12-04 10:08:48 +0200 asked a question How to visualise complex functions on a disk?

Let $f$ be a function on the unit disk $\mathbb{D}$. I want to look at the images of $f(\mathbb{D})$?

How to do this?

How to see the contours of $|f(z)|$?

How to see the argument (if possible)?

2017-11-26 22:25:52 +0200 received badge  Famous Question (source)
2017-10-08 00:36:17 +0200 received badge  Popular Question (source)
2017-08-14 19:13:27 +0200 marked best answer multivariate polynomial ring over complex numbers

I want to factorize bivariate polynomials over C. For single variable case we do this as follow:

R=CC[x]
x=R.gen()
f=x^2+1
f.factor()

How to do this for multivariate case ?

2017-05-03 13:58:24 +0200 received badge  Notable Question (source)
2017-04-06 20:21:59 +0200 received badge  Popular Question (source)
2017-02-01 15:32:53 +0200 received badge  Popular Question (source)
2016-11-15 09:41:15 +0200 asked a question Trying to find prime factorization of ideals in number fields

Let $L=\mathbb{Q}(\sqrt{-5}, i)$ and $K=\mathbb{Q}(\sqrt{-5})$. Let $O_K$ and $O_L$ be the rings of algebraic integers of $K$ and $L$. It can be checked that

$$2O_K=\langle 2, \sqrt{-5}+1\rangle^2 $$

I want to find the factorization of the ideal $\langle 2, \sqrt{-5}+1\rangle O_L$ in $O_L$ ?

The problem I am having is this. I don't know the syntax for the ideal generated by $\langle 2, \sqrt{-5}+1\rangle O_L$.

What to do ?