D.I. Olive, J. Underwood, N. Turok, Solitons and the Stress Energy Tensor in Affine Toda Theory, Nuclear Physics B401, 1993, 662 (perimeterinstitute.ca)
For example, the classification of algebras into two genera by the law of idempotency (a + a = a) ultimately proves inept, and Whitehead's discussion of positional manifolds repeatedly confuses the distinct notions of what we now call affine and projective spaces. (religion-online.org)
«It binds highly affine and very specific to sugar molecules that sit in the cell wall of the fungi and which are normally recognized as «foreign» by the plant,» explains Professor of Molecular Biology Alga Zuccaro from the University of Cologne. (sciencedaily.com)