Regular part

The term "regular part" can refer to different concepts depending on the context in which it is used. Here are a few interpretations: 1. **In Mathematics (Topology)**: The regular part of a measure or function might refer to a subset that behaves nicely according to certain criteria, such as being continuous or differentiable. For example, in the context of measures, the "regular part" of a measure could refer to the portion that can be approximated by more regular sets.