2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/108940We introduce a new skein module for three manifolds based on properly embedded surfaces and their relations introduced by D.Bar-Natan, and modified by M.Khovanov. We compute the structure of the modules for some manifolds, including Seifert fibred manifolds.19 pagesQuantum AlgebraGeometric Topology57M27, 57R56text