October 2008 Archives

Oct 12, 2008

Fields Institute Workshop

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The Fields Institute organizes a Workshop on Arithmetic Geometry with talks by Soule, Consani and Durov a.o. and topics including Arakelov geometry (‘including the infinity-adic’) and ‘Generalized rings and schemes’.


Oct 10, 2008

one week F_un blogging

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Our highly paid IC-experts do not know that MPG also stand for the Max Planck Gesellschaft and that the string .mpg. is contained in all official email-addresses from MPI … This almost prematurely killed this blog.


Oct 10, 2008

Connes-Consani for undergraduates (3)

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Alain Connes and Katia Consani arXived the paper “On the notion of geometry over F_un” in which they refine and simplify Soule’s approach. This series tries to explain their construction to non-specialists in algebraic geometry.


Oct 9, 2008

Gadgets a la Soulé

Posted by in graduate, Soule2004 3 comments

Inspired by the equivalent definition of a scheme as a particular kind of functor, Soulé gives his definition of a gadget over F_un as a couple consisting on a functor, that takes the rôle of the functor of points, and an algebra, which encodes a ‘topology at infinity’ and gives us the extra information that is missing in the functor.


Oct 8, 2008

Connes-Consani for undergraduates (2)

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Alain Connes and Katia Consani arXived the paper “On the notion of geometry over F_un” in which they refine and simplify Soule’s approach. This series tries to explain their construction to non-specialists in algebraic geometry.


Oct 6, 2008

Connes-Consani for undergraduates (1)

Posted by in Connes-Consani2008, featured, undergraduate 8 comments

Alain Connes and Katia Consani arXived the paper “On the notion of geometry over F_un” in which they refine and simplify Soule’s approach. This series tries to explain their construction to non-specialists in algebraic geometry.


Oct 6, 2008

Kurokawa2005

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Nobushige Kurokawa: Zeta functions over Proc. Japan Acad., 81, Ser. A (2005), 180-184 Click on the picture below to get a PDF-version of the paper.


Oct 4, 2008

The skeleton of Soulé’s F_un geometry

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Any possible definition of a variey over F_un should have a nice extension of scalars to the integers. In particular, we might expect to be able to control the behavior of such extension for the easiest family of rings defined over F_un: its finite abelian extensions F_un^n.


Oct 3, 2008

MPI F_un Study Seminar

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At the Max-Planck Institute for Mathematics in Bonn a weekly study seminar on F_un will start tuesday october 7th at 14.00 hrs.


Oct 3, 2008

Connes on YouTube

Posted by in Connes-C-M-2008, webcasts 1 comment

Alain Connes explaining the paper “Fun with F_un” on YouTube!