On the Arf invariant in historical perspective Falko Lorenz (M¨ unster) and

Source URL: www.rzuser.uni-heidelberg.de

• Algebra
• Mathematics
• Quadratic forms
• Abstract algebra
• Cahit Arf
• Helmut Hasse
• Arf invariant of a knot
• Arf invariant
• ARF
• Emmy Noether
• HasseArf theorem
• Ernst Witt