Computing Invariants of the Weil Representation

Autor: Nils-Peter Skoruppa, Stephan Ehlen
Rok vydání: 2017
Předmět:
Zdroj: Contributions in Mathematical and Computational Sciences ISBN: 9783319697116
Popis: We propose an algorithm for computing bases and dimensions of spaces of invariants of Weil representations of \({\mathrm {SL}}_2(\mathbb {Z})\) associated to finite quadratic modules. We prove that these spaces are defined over \(\mathbb {Z}\), and that their dimension remains stable if we replace the base field by suitable finite prime fields.
Databáze: OpenAIRE