14 citations · 14 across the 3 of their papers we have counts for
3 papers
math.KT2007★ 14 cited
Index theory for actions of compact Lie groups on C*-algebras
Charlotte Wahl
We study the index theory for actions of compact Lie groups on C*-algebras with an emphasis on principal actions. Given an invariant semifinite trace on the C*-algebra we obtain se…
math.FA2007
Spectral flow as winding number and integral formulas
Charlotte Wahl
A general integral formula for the spectral flow of a path of unbounded selfadjoint Fredholm operators subject to certain summability conditions is derived from the interpretation…
math.KT2003
Noncommutative Maslov Index and Eta Forms
Charlotte Wahl
We define and prove a noncommutative generalization of a formula relating the Maslov index of a triple of Lagrangian subspaces of a symplectic vector space to eta-invariants associ…