Similarly, on a plane, Cartesian coordinates use a pair of numbers – one on the x-axis, one on the y-axis – that can be used to locate a specific point on the plane.

Ismael González Yero, Juan Alberto Rodríguez-Velázquez, ROMAN DOMINATION IN CARTESIAN PRODUCT GRAPHS AND STRONG PRODUCT GRAPHS, Applicable Analysis and Discrete Mathematics, Vol. 7, No. 2 (October ...

There are known exact results of the crossing numbers of the Cartesian product of all graphs of order at most four with paths, cycles and stars. Moreover, for the path 𝑃n of length n, the crossing ...