Maximal tails,character fibres and induced modules for pullback Kumjian-Pask algebras
Let $f:\N^{k}\to\N^{\ell}$ be a surjective monoid homomorphism and let $\Gamma$ be a row-finite $\ell$-graph with no sources and finitely many vertices. We give an explicit graded isomorphism from the Kumjian--Pask algebra of the pullback $f^{*}\Gamma$ onto the tensor product of $\KP_{\K}(\Gamma)$ and the group algebra...