文摘
Let G be a finite group, 8e4774ec1bc07f0223ffa7ee73" title="Click to view the MathML source">S the subgroup category of G, and M a Mackey functor on G . For full subcategories e84ced87" title="Click to view the MathML source">G and 80fd6fe6db4be9b73f16106b2" title="Click to view the MathML source">H of 8e4774ec1bc07f0223ffa7ee73" title="Click to view the MathML source">S, we have the direct limit M⁎(G) and the inverse limit 833b587b61" title="Click to view the MathML source">M⁎(H) of M . In this paper we study relation between the canonical homomorphisms a2f233c3" title="Click to view the MathML source">ind:M⁎(G)→M(G) and res:M(G)→M⁎(H).