outer product- (of differential forms) ytra margfeldi, útfeldi, Grassmann-margfeldi, Grassmann-feldi
= alternating product 1, Grassmann product, exterior product, wedge product - (of sets) mengjamargfeldi, faldmengi, Kartesarmargfeldi, karteskt margfeldi
= cartesian product, cross product 2, set product
-> direct product - (of tensors) þinfeldi
= tensor product - (of vectors) krossfeldi, krossmargfeldi, vigurmargfeldi, vigurfeldi, vektormargfeldi
= alternating product 2, cross product 1, skew product, vector product