a. Notably, PoreMatMod.jl finds the query fragments that are split across the periodic boundaries. search.isomorphisms is a nested array, where the sets of symmetry-equivalent bijections between a particular V p and V q are grouped together. We provide helper functions to count the total number of isomorphisms found, the number of unique subgraphs V p involved in the isomorphisms, and the number of bijections for each distinct V p . .