The students in my English course asked me to further talk a bit about some particular math topics. One thing they mentioned is topology, so I start with an introductory lecture in topology.
Title: Topology
Place: 214 Science Building, Chang'an Campus, Northwestern Polytechnical University
Time: Thursday 16:00–17:30, occasional changes
Instructor: Melchior Grützmann
Course home page: www.grutzmann.de/geometry
Language: English
Date  Topic 

Apr 19,26, May 3 

Homotopy theory  homotopic maps, homotopic spaces, fundamental group, difference sphere, torus 
futher topics 

This page is maintained by M. Grützmann.