Maximal tails,character fibres and induced modules for pullback Kumjian-Pask algebras

Bich Van Nguyen

Let $f:{\mathbb{N}}^k\to {\mathbb{N}}^{\ell }$ 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 isomo…