The category of two-colored pair partitions is a category of two-colored partitions inducing the co-representation categories of the orthogonal groups.
By the category of two-colored pair partitions one denotes the subcategory of the category of all two-colored partitions whose morphism class is the set of all pair partitions. It was introduced by Tarrago and Weber in [TaWe18], Theorem 8.3 under the name .
The set of two-colored pair partitions is the morphism set of the subcategory of generated by the set .
The category of two-colored pair partitions induces the co-representation categories of the orthogonal groups .