Monoids of moduli spaces of manifolds
Monoids of moduli spaces of manifolds
We study categories of d -dimensional cobordisms from the perspective of Tillmann [14] and Galatius, Madsen, Tillman and Weiss [6].There is a category C Â of closed smooth .d1/-manifolds and smooth d -dimensional cobordisms, equipped with generalised orientations specified by a map ÂW X !BO.d /.The main result of [6] …