Mathematical Notes
On some mathematical topics I found interesting.
–
Category:
Topology
Another application of Baire category theorem
Not all finitely-presented groups are fundamental groups of closed 3-manifolds
Freudenthal Compactification
How Stallings proved finitely generated groups are subgroup separable
Free groups acting on the circle
Third Homotopy Group of the Sphere and Hopf Fibration
Hairy ball theorem without degree theory
« Older posts
Advertisements
Archives
September 2015
August 2015
July 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
Blogroll
Alex Sisto
Exploring the works of Gilbert Baumslag
Gödel Lost Lettre and P=NP
Geometric Group Theory
Geometry and the Imagination
Here there be dragons
Image des Mathématiques
Low Dimensional Topology
What's New
Meta
Register
Log in
RSS Entries
Comments RSS
Post to
Cancel