In this talk I will explain how the study of graded fusion categories is related with homotopy theory, particularly with homotopy 3-types (that is spaces for which only first three homotopy groups are nontrivial). |

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In this talk I will explain how the study of graded fusion categories is related with homotopy theory, particularly with homotopy 3-types (that is spaces for which only first three homotopy groups are nontrivial). |