Disambiguation evidence for Godbillon–Vey invariant via surface form

"Godbillon–Vey class"

Triples (1)

Triples where some other subject referred to this entity as "Godbillon–Vey class".

Connes–Moscovici index theorem involves
"Godbillon–Vey class"
↳ resolves to Godbillon–Vey invariant