Timeline for Locally compact groupoid with a Haar system such that the range map restricted to isotropy groupoid is open
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jun 13 at 1:05 | comment | added | David Roberts♦ | @LSpice a suitably invariant family of measures on the source fibres $s^{-1}(x)$ (say) of a suitable topological groupoid (for all $x$ in the space of objects), or more generally something like a groupoid internal to measurable spaces. | |
| Jun 12 at 20:57 | answer | added | Madalina Buneci | timeline score: 1 | |
| Jun 7 at 23:30 | comment | added | Benjamin Steinberg | @LSpice, Haar systems are the groupoid analogues of Haar measure. They are not automatic and when they exist the range map is open | |
| Jun 7 at 23:29 | comment | added | Benjamin Steinberg | Presumably you want to eliminate silly cases like when the isotropy subgroupoid is open eg for discrete groupoids or groupoids with only isotropy | |
| Jun 7 at 16:26 | history | edited | YCor | CC BY-SA 4.0 |
formatting, moved question to body
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| Jun 7 at 13:43 | comment | added | LSpice | What is a Haar system? | |
| S Jun 7 at 13:35 | review | First questions | |||
| Jun 7 at 13:49 | |||||
| S Jun 7 at 13:35 | history | asked | K N Sridharan | CC BY-SA 4.0 |