Operads and phylogenetic trees by Baez, JC, Otter, N

A topological perspective on weather regimes by Strommen, K, Chantry, M, Dorrington, J, Otter, N

Stratifying multiparameter persistent homology by Harrington, H, Otter, N, Schenck, H, Tillmann, U

A roadmap for the computation of persistent homology by Otter, N, Porter, M, Tillmann, U, Grindrod, P, Harrington, H