ON GENERALIZATION OF SPECIAL FUNCTIONS RELATED TO WEYL GROUPS
| Autor: | Agnieszka Tereszkiewicz, Lenka Háková |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Weyl group
Pure mathematics Verma module General Engineering Context (language use) Algebra symbols.namesake lcsh:TA1-2040 Special functions Irreducible representation Lie algebra symbols Weyl transformation Orbit (control theory) lcsh:Engineering (General). Civil engineering (General) Mathematics::Representation Theory Mathematics |
| Zdroj: | Acta Polytechnica, Vol 56, Iss 6, Pp 440-447 (2016) |
| ISSN: | 1805-2363 1210-2709 |
| DOI: | 10.14311/ap.2016.56.0440 |
| Popis: | Weyl 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 the corresponding Weyl group, continuous and discrete orthogonality. A 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 characters of irreducible representations of higher dimensions. We describe their properties and give examples for Weyl groups of rank 2 and 3. |
| Databáze: | OpenAIRE |
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