Timeline for answer to What is the group of homotopy classes from the 4-torus to the 3-sphere? by John Klein
Current License: CC BY-SA 4.0
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12 events
| when toggle format | what | by | license | comment | |
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| Apr 17, 2025 at 21:56 | history | edited | John Klein | CC BY-SA 4.0 |
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| Apr 17, 2025 at 19:09 | history | edited | John Klein | CC BY-SA 4.0 |
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| Apr 17, 2025 at 19:04 | history | edited | John Klein | CC BY-SA 4.0 |
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| Apr 17, 2025 at 11:29 | history | edited | John Klein | CC BY-SA 4.0 |
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| Apr 16, 2025 at 12:12 | comment | added | mathworker21 | @AndyPutman based! thanks | |
| Apr 16, 2025 at 11:42 | comment | added | Andy Putman | @mathworker21: a “based space” is a space equipped with a basepoint. This is standard terminology that long predates the political use of the phrase on the internet. | |
| Apr 16, 2025 at 9:49 | comment | added | mathworker21 | I don't know what any of this means but I'm curious if "based" is a typo (for "base"). | |
| Apr 16, 2025 at 9:30 | history | edited | John Klein | CC BY-SA 4.0 |
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| Apr 16, 2025 at 9:29 | comment | added | John Klein | Yes. I will correct it. | |
| Apr 16, 2025 at 8:19 | comment | added | Mark Grant | Nice! Shouldn't there be another $\Sigma$ for suspension in RHS of (1), in addition to the $\Sigma$ for summation? | |
| Apr 16, 2025 at 2:41 | history | edited | John Klein | CC BY-SA 4.0 |
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| Apr 16, 2025 at 2:36 | history | answered | John Klein | CC BY-SA 4.0 |