Timeline for Positive vector in the kernel of an skew-symmetric incidence matrix
Current License: CC BY-SA 4.0
7 events
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| Jun 24, 2020 at 16:25 | history | edited | G. Panel | CC BY-SA 4.0 |
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| Jun 22, 2020 at 13:49 | comment | added | Abdelmalek Abdesselam | Sounds like a manifestation of (a weighted) Kastelyn's Theorem. $Det(M)$ is the square of the Pfaffian. However in some cases the latter is a sum of terms corresponding to matchings, involving the weights $m_{ij}$ and all contributing with the same sign. See, e.g., arxiv.org/abs/1409.4631 | |
| Jun 22, 2020 at 10:03 | history | edited | G. Panel | CC BY-SA 4.0 |
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| Jun 20, 2020 at 13:22 | history | edited | G. Panel | CC BY-SA 4.0 |
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| Jun 20, 2020 at 10:54 | history | edited | G. Panel | CC BY-SA 4.0 |
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| Jun 20, 2020 at 10:49 | review | First posts | |||
| Jun 20, 2020 at 11:55 | |||||
| Jun 20, 2020 at 10:45 | history | asked | G. Panel | CC BY-SA 4.0 |