What is the characteristic polynomial of a
signal flow graph?
Andrew D. Lewis
Department of Mathematics & Statistics
Kingston, ON K7L 3N6
1 PROBLEM STATEMENT
Signal flow graphs for modelling system interconnections are due to Mason [3, 4]. Of course, when making such interconnections, the stability of the interconnection is nontrivially related to the open-loop transfer functions that weight the branches of the signal flow graph. There are at least two things to consider in the course of making an interconnection: (1) is the interconnection BIBO stable in the sense that ...