2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61233This paper is the supplement to the section 2 of the paper "Floating bundles and their applications" (math.AT/0102054). Below we study some properties of category, connected with cobordism rings of FBSP. In particular, we shall show that it is the tensor category.5 pagesAlgebraic Topologytext