Description
In this talk we will first introduce the notion of NΓ-Hilbert space as introduced by Wolfgang Lück in 1997. Then, we will introduce the notion of Γ-Fredholm operators defined between N Γ-Hilbert space. And finally, the goal of the presentation is to define nonparabolic Γ-near infinity operators and show how they induces Γ-Fredholmness on admissible domains
