Chromatic Polynomial
A Polynomial 
of a graph 
which counts the number of ways to color with exactly 
colors. Tutte(1970) showed that the chromatic Polynomials of planar triangular graphs possess a Root closeto 
, where 
is the Golden Mean. More precisely, if 
is the number of Vertices of
, then
(Le Lionnais 1983).
References
Le Lionnais, F. Les nombres remarquables. Paris: Hermann, p. 46, 1983. Tutte, W. T. ``On Chromatic Polynomials and the Golden Ratio.'' J. Combin. Th. 9, 289-296, 1970.
- Diophantine Equation--5th Powers
- Diophantine Equation--6th Powers
- Diophantine Equation--7th Powers
- Diophantine Equation--8th Powers
- Diophantine Equation--9th Powers
- Diophantine Equation--Cubic
- Diophantine Equation--Linear
- Diophantine Equation nth Powers
- Diophantine Equation--Quadratic
- Diophantine Equation--Quartic
- Diophantine Quadruple
- Diophantine Set
- Diophantus Property
- Diophantus' Riddle
- Dipyramid
- Dirac Delta Function
- Dirac Matrices
- Dirac's Theorem
- Directed Angle
- Directed Graph
- Directional Derivative
- Direction Cosine
- Directly Similar
- Director Curve
- Direct Product (Group)