Dror Bar-Natan
:
Talks
:
GaTech-051021
:
Seifert Surface of the Figure Eight Knot
drawn using
Jack van Wijk
's amazing
SeifertView
Vertices
V
Edges
E
Faces
F
χ=V-E+F=1-2g
In picture
288
578
289
-1
Face and Edge
0
1
1
0
Edge and Vertex
1
1
0
0
Homology
1
2
0
-1