Timeline for Injectivity of rationalization on spectrum morphisms
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 13, 2021 at 22:52 | answer | added | Nicholas Kuhn | timeline score: 3 | |
| Apr 13, 2021 at 19:52 | answer | added | Neil Strickland | timeline score: 5 | |
| Apr 13, 2021 at 19:46 | answer | added | user171227 | timeline score: 5 | |
| Apr 12, 2021 at 13:42 | comment | added | Ann | Oh, thanks! It's an interesting example. So, $j_*$ is not injective in general. But $H \mathbb Q$ is not of finite type. May be, it's true for such spectrum $E$? | |
| Apr 12, 2021 at 3:31 | comment | added | Eric Peterson | @user171227 I don't think that's cheating! | |
| Apr 12, 2021 at 0:19 | comment | added | user171227 | Maybe this is cheating, but $[H\mathbb{Q},\Sigma H\mathbb{Z}]= \mathrm{Ext}(\mathbb{Q},\mathbb{Z})$ is torsion free and non-zero. | |
| Apr 12, 2021 at 0:06 | history | asked | Ann | CC BY-SA 4.0 |