8 Homotopy theory of Fredholm operators
8 Homotopy theory of Fredholm operators
Homotopy theory of Fredholm operatorsThis chapter is about homotopy groups of the sets of Fredholm operators, unitary and self-adjoint Fredholm operators, Fredholm pairs, and other operator classes.Both bounded and unbounded Fredholm operators with various topologies are dealt with, and as an application a characterization of the spectral flow is proved …