Schur covers of skew braces

Autor: Letourmy, T., Vendramin, L.
Rok vydání: 2023
Předmět:
Zdroj: J. Algebra 644 (2024), 609-654
Druh dokumentu: Working Paper
DOI: 10.1016/j.jalgebra.2024.01.021
Popis: We develop the theory of Schur covers of finite skew braces. We prove the existence of at least one Schur cover. We also compute several examples. We prove that different Schur covers are isoclinic. Finally, we prove that Schur covers have the lifting property concerning projective representations of skew braces.
Comment: 34 pages. Postprint version
Databáze: arXiv