2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/105082We define an analogue of Shapovalov forms for Q-type Lie superalgebras and factorize the corresponding Shapovalov determinants which are responsible for simplicity of highest weight modules. We apply the factorization to obtain a description of the centres of Q-type Lie superalgebras.60 pagesRepresentation Theory17B20, 17B35text