Various constructions for cospectral graphs, used in the investigation of isospectral molecules, are explained in terms of certain geometrical invariants of eutactic stars associated with a graph.
This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the ...
This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the ...