Category Theory

1. Matthias Künzer, Nonisomorphic Verdier octahedra on the same base, J. Homotopy Relat. Struct. 4 (2009), no. 1, 7–38.^[MR/arXiv]
2. David Penneys, A cyclic approach to the annular Temperley-Lieb category, preprint (2009), 35 pages.^[arXiv]