Prefer a chat interface with context about you and your work?
The fundamental group and Galois coverings of hexagonal systems in3-space
We consider hexagonal systems embedded into the 3ādimensional space ā 3 . We define the fundamental group Ļ 1 ( G ) of such a system G and show that in case G is a finite hexagonal system with boundary, then Ļ 1 ( G ) is a (nonāAbelian) free ā¦