For two distribution functions, F and G, the shift function is defined by $\Delta(t) \equiv G^{-1} \circ F(t) - t$. The shift function is the distance from the 45 ⚬ line and the quantity plotted in ...

We construct higher order spectral shift functions, which represent the remainders of Taylor-type approximations for the value of a function at a perturbed self-adjoint operator by derivatives of the ...