Without breaking ground on the chromatic phenomena presented by crystals, two other sources of colour may be mentioned here.
"Six Lectures on Light" by John Tyndall
F. If the disc appear blurred and coloured, however the focus be adjusted, incomplete correction for chromatic aberration is inferred.
"On Laboratory Arts" by Richard Threlfall
In these chromatic displays, red is the colour that predominates.
"Chambers's Edinburgh Journal, No. 461" by Various
My room is now done, and looks very gay, and chromatic with its blue walls and my coloured lines of books.
"The Works of Robert Louis Stevenson - Swanston Edition Vol. 25 (of 25)" by Robert Louis Stevenson
It is customary to show the complementary colours diagrammatically by what is known as the chromatic circle.
"Colour Measurement and Mixture" by W. de W. Abney
Form can exist independently of colour, but it never has had any important development without the chromatic adjunct.
"Principles of Decorative Design" by Christopher Dresser
The baskets are coloured yellow with CHROMATE OF LEAD.
"Curiosities of Civilization" by Andrew Wynter
Now each such leaf, having colour α′ = vn , can be considered as the root of a new ﬁnite subtree composed only by paths of the type V(n(α′ )), where n(α′ ) is the chromatic matrix obtained from n(α) by changing the root colour from α into α′ .
Random walks in random environment on trees and multiplicative chaos
The chromatic number χ(G) (choice number ch(G) ) of G is the least integer k such that G is k-colourable (k-choosable).
Colouring complete bipartite graphs from random lists
This procedure gives a colouring F of the Boolean lattice of a graph, ﬁrst deﬁned by Helme-Guizon a nd Rong (see ), and the homology of the associated cube complex is related to the chromatic polynomial of Γ .
Homology of coloured posets: a generalisation of Khovanov's cube construction
The chromatic number χ(H ) is the smallest number of colours in a proper colouring of H .
Randomly colouring simple hypergraphs
From a graph theory perspective, this was traditionally motivated by graph colouring questions, since the chromatic polynomial of a graph G, when evaluated at a non-negative integer q , gives the number of ways to properly colour G using q colours.
The Tutte-Potts connection in the presence of an external magnetic field