A friendly introduction to the concepts of noncommutative geometry
I had the pleasure to talk this friday at this seminar. Now I've just finished cleaning up the notes I had prepared for this talk, and I thought it might be of interest to some of you. Here they are.
It is a very low-tech introduction to an introduction, and it should be easy to follow for anybody with undergraduate level in math or physics.
Update 11/08/2013 : important remark added at the end of appendix 1.