The talk on the conference "Algebraic Geometry, K-theory, and Motives" (a conference dedicated to Andrei Suslin's 60th birthday) St. Petersburg, Russia June 25-29, 2010. This recording is designed to watch it in full screen on a powerful computer. This format is specially designed for recording chalkboards.
Here we place recordings of mathematical lectures held in Steklov Mathematical Institute at Saint Petersburg, Russia and Euler International Mathematical Institute