6533b836fe1ef96bd12a09eb

RESEARCH PRODUCT

A computational criterion for the Kac conjecture

Sergey Mozgovoy

subject

Discrete mathematicsPure mathematicsAlgebra and Number TheoryConjectureQuiverMultiplicity (mathematics)16G20High Energy Physics::TheoryFinite fieldMathematics::Quantum AlgebraFOS: MathematicsRepresentation Theory (math.RT)Mathematics::Representation TheoryIndecomposable moduleMathematics - Representation TheoryMathematics

description

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.

https://doi.org/10.1016/j.jalgebra.2007.02.018