TY - GEN AU - El Kaoutit Zerri, Laiachi AU - Spinosa, Leonardo PY - 2023 SN - 1220-3874 UR - https://hdl.handle.net/10481/98617 AB - We explore the concept of conjugation between subgroupoids, providing several characteriza- tions of the conjugacy relation (Theorem A in §1.2). We show that two finite groupoid-sets, over a locally strongly finite groupoid, are isomorphic, if and... LA - eng PB - BULLETIN MATHÉMATIQUE de la Société des Sciences Mathématiques de Roumanie (Bull. Math. Soc. Sci. Math. Roumanie) TI - On Burnside Theory for groupoids ER -