Oct 31, 2008

Halloween-talk : prep-notes

Posted by in KapranovSmirnov, Kurokawa2005, Manin1995, Manin2006, Manin2008, news No comments

The prep-notes for the halloween-talk on “F_un and other ghost stories” at the Arts are available.

Sep 22, 2008

F_un and braid groups

Posted by in KapranovSmirnov, undergraduate 2 comments

We have seen before that the symmetric group S(n) has a F-un interpretation as the linear group GL(n) over the field with one element. Hence, we can ask whether there is also a F-un interpretation of the n-string braid group and of the above group-morphism.

Sep 22, 2008

F_un linear algebra

Posted by in graduate, KapranovSmirnov No comments

Over F_un vectorspaces are pointed sets. One can also do linear algebra over the F_un extension fields F_un^n. Vectorspaces are then pointed sets having a free action of n-th roots of unity.

Sep 22, 2008

The F_un folklore

Posted by in graduate, KapranovSmirnov, Manin1995 1 comment

The followers of F-un have their own collection of semi-secret texts, surrounded by whispers, of which they try to decode every single line in search of enlightenment. Fortunately, you do not have to search the shelves of the Bibliotheque National in Paris, but the depths of the internet to find them as huge, bandwidth-unfriendly, scanned documents.

Sep 21, 2008


Posted by in KapranovSmirnov, library No comments

M. Kapranov and I. Smirnov : Cohomology determinants and reciprocity laws: Number field case, (unpublished notes)