Timeline for Conjecture about commutative semigroups
Current License: CC BY-SA 4.0
21 events
| when toggle format | what | by | license | comment | |
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| Oct 13 at 14:21 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
Fixed another mistake
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| Oct 13 at 10:00 | comment | added | Salvo Tringali | @FabiusWiesner That's the only counterexample of order 3, see mathoverflow.net/a/480570/16537 | |
| Oct 13 at 6:57 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
fixed a typo in the def of a left zero sgrp
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| Oct 13 at 4:46 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
fixed a few more typos/mistakes, added a remark on commutativity, and a cross-reference to another non-answer dealing with the case of order-3 semigroups
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| Oct 11 at 12:55 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
deleted 50 characters in body
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| Oct 11 at 12:49 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
many substantial changes and a few more typos mistakes
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| Oct 11 at 8:59 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
edited body
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| Oct 11 at 8:53 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
added 52 characters in body
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| Oct 11 at 8:48 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
added 52 characters in body
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| Oct 11 at 8:41 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
added the case of nilsemigroups and fixed a couple more of mistakes
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| Oct 11 at 6:54 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
fixed some other mistakes
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| Oct 11 at 6:24 | comment | added | Fabius Wiesner | For $n=3$ there is the counterexample $\mathbb{Z}/3\mathbb{Z}$. | |
| Oct 11 at 5:16 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
fixed another mistake; Proposition 1 is now only proved for monoids that have at least one cancellative element other than the identity
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| Oct 11 at 5:11 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
fixed another mistake; Proposition 1 is now only proved for monoids that have at least one cancellative element other than the identity
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| Oct 11 at 4:54 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
fixed the definition of r_S(a,b)
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| Oct 11 at 4:32 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
noted that Proposition 1 is especially true for monoids
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| Oct 11 at 4:21 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
deleted 100 characters in body
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| Oct 11 at 4:14 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
further simplified the proof
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| Oct 11 at 3:37 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
deleted 84 characters in body
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| Oct 11 at 3:27 | history | edited | Salvo Tringali | CC BY-SA 4.0 |
added 183 characters in body
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| Oct 11 at 3:20 | history | answered | Salvo Tringali | CC BY-SA 4.0 |