Timeline for Maximum dimension of a simultaneous anisotropic subspace of quadratic forms over $ \mathbb{Q} $
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 13, 2022 at 13:23 | comment | added | Sky | Thanks @Antoine Labelle , now I understand | |
| Jan 13, 2022 at 13:22 | vote | accept | Sky | ||
| Jan 12, 2022 at 21:42 | comment | added | Antoine Labelle | q.anisotropic_primes() gives the list of all primes $p$ (including $\infty$) such that $q$ is anisotropic over $\mathbb{Q}_p$. So by Hasse-Minkowski q is anisotropic over $\mathbb{Q}$ if and only if q.anisotropic_primes() is nonempty (note that in python for a list L, "if L" evaluates to False if L is empty and True otherwise). | |
| Jan 12, 2022 at 20:10 | comment | added | Sky | What does mean anisotropic primes here? So in general for any quadratic form we can compute an anisotropic subspace of a quadratic form or common anisotropic subspace for both with the help of sage math? | |
| Jan 5, 2022 at 21:50 | history | answered | Antoine Labelle | CC BY-SA 4.0 |