On the homotopy exact sequence for Nori's fundamental group
Hélène Esnault, Phùng Hô Hai and Eckart Viehweg
| Number | 38 |
|---|---|
| Authors |
Phùng Hô Hai
Eckart Viehweg Hélène Esnault |
| Year | 2009 |
Unlike Grothendieck's étale fundamental group, Nori's fundamental group does not ful ll the homotopy exact sequence in general. We give necessary and sufficient conditions which force exactness of the sequence.
