Drazin inverses and their modern generalisations constitute a pivotal area of operator theory within Banach algebras. These inverse concepts extend the classic notion of the matrix inverse to settings ...

The concept of “inverse” is central to Algebra. It might be used when describing adding a negative number to a positive one to clear out a simple algebraic equation, or might show up as a topic in ...

This department explores a game used to help students learn about additive inverses, or “zero pairs.” Authors describe some common reasoning that students used while playing the game and provide ...