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Motivic Donaldson-Thomas invariants and Kac conjecture (1103.2100v2)
Published 10 Mar 2011 in math.AG and math.RT
Abstract: We derive some combinatorial consequences from the positivity of Donaldson-Thomas invariants for symmetric quivers conjectured by Kontsevich and Soibelman and proved recently by Efimov. These results are used to prove the Kac conjecture for quivers having at least one loop at every vertex.
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