Timeline for Measurable subgroups.
Current License: CC BY-SA 2.5
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 12, 2020 at 12:43 | comment | added | Matthew Daws | For future reference, this is known as Steinhaus's Theorem. The wikipedia page gives some links to elementary proofs: in particular this holds for any locally compact group. | |
| May 28, 2010 at 9:11 | comment | added | coudy | This is true for any locally compact second countable group. This is proven e.g. in the appendices at the end of Zimmer book "Ergodic theory and semi-simple Lie groups". The proof is not very different from the proof for the group R of real numbers, that you can find in many textbooks. | |
| May 13, 2010 at 14:19 | comment | added | Matthew Daws | I'm certain that this is in Hewitt+Ross volume 1, but I don't have a copy handy to check. I'm not sure of a more modern textbook reference... | |
| May 13, 2010 at 12:54 | vote | accept | Xandi Tuni | ||
| May 13, 2010 at 12:54 | comment | added | Xandi Tuni | If that is true (it seems like a nontrivial statement, but I'm willing to believe) the story ends here. | |
| May 13, 2010 at 11:54 | history | answered | Gerald Edgar | CC BY-SA 2.5 |