A computational criterion for the Kac conjecture
arXiv:math/0608321 · doi:10.1016/j.jalgebra.2007.02.018
Abstract
We give a criterion for the Kac conjecture asserting that the free term of the polynomial counting the absolutely indecomposable representations of a quiver over a finite field of given dimension coincides with the corresponding root multiplicity of the associated Kac-Moody algebra. Our criterion suits very well for computer tests.
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