Timeline for Fundamental groups of open algebraic varieties [closed]
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 10, 2019 at 0:39 | history | closed |
R. van Dobben de Bruyn user44191 LSpice Denis Nardin Pace Nielsen |
Needs details or clarity | |
| Jun 4, 2019 at 14:43 | comment | added | LSpice | Note that having a presentation does not imply being able to answer your questions—not even, in full generality, whether the presented group is trivial. | |
| Jun 4, 2019 at 7:50 | comment | added | Longma | Yes. I would like to know the exact presentation of the fundamental group. For example, is it a free group? Or a finitely presented group and what are the relations? Is it possible for general varieties? Any reference to understand the algorithm? | |
| Jun 3, 2019 at 21:00 | review | Close votes | |||
| Jun 10, 2019 at 0:39 | |||||
| Jun 3, 2019 at 20:39 | comment | added | Denis Nardin | What do you mean with 'compute'? There are algorithms giving you a triangulation of an algebraic variety, and from that giving a presentation of the fundamental group is trivial, but is this what you mean? | |
| Jun 3, 2019 at 19:38 | history | asked | Longma | CC BY-SA 4.0 |