On some mathematical topics I found interesting.
On subgroups of surface groups
Graphs and Free Groups
Fiber product of graphs and Howson’s theorem for free groups
Surfaces and commutators in free groups
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
Create a free website or blog at WordPress.com.
To find out more, including how to control cookies, see here: