# Prerequisites to start the study of non-commutative geometry in physics

What are prerequisites (in mathematics and physics), that one should know about for getting into use of ideas from non-commutative geometry in physics?

I assume from the way you phrase your question that you already are familiar with Connes's work itself. If not, you would need to prepare by studying Dixmier's book on von Neumann algebras or Guichardet or Dixmier, Les $C^*$-algebres et leurs représentations. Hope this helps.