Archive for 'Talks'
Hyperbolizaion of Polyhedra
I gave a talk in the Farb and Friends Student Seminar (back in March!) on: Davis, Michael W.; Januszkiewicz, Tadeusz Hyperbolization of polyhedra. J. Differential Geom. 34 (1991), no. 2, 347—388. This is an awesome paper—well-worth a few words on every blog! The construction is way easier than you might think. […]
Posted: July 26th, 2008 under Talks, Mathematics.
Comments: none
Building aspherical manifolds.
I gave a Farb student seminar talk on a lovely paper, Davis, Michael W. Groups generated by reflections and aspherical manifolds not covered by Euclidean space. Ann. of Math. (2) 117 (1983), no. 2, 293—324. I also used some of the material in Davis, Michael W. Exotic aspherical manifolds. […]
Posted: January 25th, 2007 under Talks, Mathematics.
Comments: none
Approximating L^2 invariants by finite-dimensional analogues.
I gave a couple of seminar talks on Lück, W. Approximating -invariants by their finite-dimensional analogues. Geom. Funct. Anal. 4 (1994), no. 4, 455—481. Here’s the main result in the paper. Let be a CW-complex, and filter as with so that . Let be […]
Posted: November 22nd, 2006 under Talks.
Comments: none
Algebraic topology and distributed computing.
I gave a seminar talk on Herlihy, Maurice; Rajsbaum, Sergio Algebraic topology and distributed computing—-a primer. Computer science today, 203—217, Lecture Notes in Comput. Sci., 1000, Springer, Berlin, 1995. This paper doesn’t do it (but Rajsbaum’s MSRI talk did), but the result can be reformulated combinatorially, so that the algebraic topology […]
Posted: November 6th, 2006 under Talks.
Comments: none