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arXiv 0901.1780math.RT
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广义Kronecker图的树模

Tree modules of the generalized Kronecker quiver

Thorsten Weist

摘要:

对于互素的维数向量,Kronecker模空间的某些环面不动点是不可分解的树模.它们是正则m-树的不可分解表示,并且对于每个互质的维数向量,它们可以被胶合以得到稳定的环面不动点。利用它们的稳定性和反射函子,证明了对于任意根,存在Kronecker图的不可分解树模作为这些环面不动点的因子模.

英文摘要:

For coprime dimension vectors certain torus fixed points of the Kronecker moduli space are indecomposable tree modules. They are indecomposable representations of the regular m-tree and can be glued in order to get stable torus fixed point for every coprime dimension vector. Using their stability and the reflection functor we show that for arbitrary roots there exist indecomposable tree modules of the Kronecker quiver as factor modules of these torus fixed points.

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