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  • ...n:quiver (mathematics)]]'') 為一[[有向圖]](其邊又曰「矢(''arrow'')」),可有廻圈或多重邊。此結構常見於[[表示論]]。 [[Category:表示論]] ...
    2 KB (141 words) - 09:32, 3 July 2013
  • ...構]]之通稱,[[霍普夫代數]](Hopf algebra)之特例,亦可視為[[q-量子化]]之李代數也。雖其名曰「羣」,惟彼非[[羣]]矣。以其[[表示論]]可構[[楊振寧-Baxter 方程]]之解,與[[扭結]]之[[鍾斯不變量|不變量]]。 ...
    24 KB (2,947 words) - 12:38, 4 May 2019