In the mathematical field of Lie theory, a Dynkin diagram, named for Eugene Dynkin, is a type of graph with some edges doubled or tripled (drawn as a double or triple line) and, within certain constraints, directed multiple edges.
The family was named by Coxeter as k21 by its bifurcating Coxeter–Dynkin diagram, with a single ring on the end of the k-node sequence.
The Coxeter–Dynkin diagram is given in a linear form, although it is actually a triangle, with the trailing segment r connecting to the first node.
Venn diagram | Phase diagram | Function block diagram | Euler diagram | Eugene Dynkin | Coxeter–Dynkin diagram | Warnier/Orr diagram | Voronoi diagram | Satake diagram | Ribbon diagram of Sucrose Synthase-1 3S27 Structure, isolated from ''Arabidopsis thaliana | Lexis diagram | ''K''5 is the Hasse diagram | Hertzsprung–Russell diagram | Grotrian diagram | Function Block Diagram | Diagram of ''Trigonia costata'' James Parkinson | Control flow diagram | Campbell Diagram | Campbell diagram | Andy Diagram |