XXXIV Workshop on Geometric Methods in Physics | 28.06-4.07.2015 |

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## Lenka Hakova## On generalization of Weyl group orbit functionsWeyl group orbit functions are defined in the context of Weyl groups of simple Lie algebras. They are multivariable complex functions possessing remarkable properties such as (anti)invariance with respect to corresponding Weyl group, continuous and discrete orthogonality. Crucial tool in their definition are so-called sign homomorphisms, which coincide with one-dimensional irreducible representations. In this work we generalize the definition of orbit functions using irreducible characters of representations of higher dimensions. We describe their properties and give examples. |

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