"Quiver mutations"의 두 판 사이의 차이
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imported>Pythagoras0 |
Pythagoras0 (토론 | 기여) |
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==quiver mutations== | ==quiver mutations== | ||
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* The new arrows simplify with any old arrows in the opposite direction. | * The new arrows simplify with any old arrows in the opposite direction. | ||
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==links== | ==links== | ||
* http://www.mutatingquivers.com/Home.html | * http://www.mutatingquivers.com/Home.html | ||
2020년 12월 28일 (월) 04:21 기준 최신판
quiver
- quiver = finite oriented graph without loop and 2-cycle
quiver mutations
- This is a process that can be done at any point of the quiver
- The new quiver has same points as the old quiver.
- Arrows into the point of mutation in the old quiver becomes arrows out, in the new quiver.
- Arrows out of the point of mutation in the old quiver becomes arrows into, in the new quiver.
- There are new arrows formed. Any path of length 2 through the point of mutation gives an arrow in the new quiver. The arrow has the same startining and ending points as the path.
- The new arrows simplify with any old arrows in the opposite direction.
links
- http://www.mutatingquivers.com/Home.html
- http://www.mutatingquivers.com/Concept%20of%20Mutation.html
- http://mathoverflow.net/questions/36536/quiver-mutation