Mackey formula for bisets over groupoids El Kaoutit Zerri, Laiachi Spinosa, Leonardo In this paper, we establish the Mackey formula for groupoids, extending the well-known formula in abstract groups context. This formula involves the notion of groupoid-biset, its orbit set and the tensor product over groupoids, as well as cosets by subgroupoids 2025-01-08T07:29:18Z 2025-01-08T07:29:18Z 2019 journal article https://hdl.handle.net/10481/98605 http://dx.doi.org/10.1142/S0219498819501093 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Journal of Algebra and Its Applications World Scientific Publishing Company