chapter
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A Monta–Takeuchi Context for Graded Coalgebras

WithCrina Boboc

For C a G‐graded coalgebra, and H a finite subgroup of G, we construct a stnct Monta‐Takeuchi context connecting the coalgebras C ⋊ k(H ∖ G) and (C ⋊ kG) ⋊ (kH)*.