Israel Journal of Mathematics ( IF 1 ) Pub Date : 2021-03-06 , DOI: 10.1007/s11856-021-2108-2 Mamta Balodi , Abhishek Banerjee , Samarpita Ray
In this paper, we study modules over quotient spaces of certain categorified fiber bundles. These are understood as modules over entwining structures involving a small K-linear category \({\cal D}\) and a K-coalgebra C. We obtain Frobenius and separability conditions for functors on entwined modules. We also introduce the notion of a C-Galois extension \({\cal E} \subseteq {\cal D}\) of categories. Under suitable conditions, we show that entwined modules over a C-Galois extension may be described as modules over the subcategory \({\cal E}\) of C-coinvariants of \({\cal D}\).
中文翻译:
线性类别和Galois扩展上的交织模块
在本文中,我们研究了某些分类纤维束的商空间上的模块。这些被理解为包含小K线性类别\({\ cal D} \)和K -coalgebra C的交织结构上的模块。我们获得缠绕模块上函子的Frobenius和可分离性条件。我们还介绍了类别的C -Galois扩展\({\ cal E} \ subseteq {\ cal D} \)的概念。在合适的条件下,我们证明了在C -Galois扩展上纠缠的模块可以描述为\({\ cal D} \)的C-协变子\({\ cal E} \)上的模块。