Now showing items 1-6 of 6
A graph theory interpretation of nodal regions
(Springer-Verlag; The Regional Science Association, 1961-12)
The techniques defined in this paper will divide a set of cities into subgroups which specify a central place and its subordinate hierarchy. The association between cities is not the only system which may be defined as a ...
An approach to the direct measurement of community mean information fields
(Springer-Verlag; The Regional Science Association, 1963-12)
Computation of the correspondence of geographical patterns
(Springer-Verlag; The Regional Science Association, 1965-12)
What is a system?
(Elsevier, 1981)
A new definition and model of a system is presented utilizing graph theoretic concepts and introducing nested graphs. By a comprehensive search of the literature, this abstract formulation of a system is shown to incorporate ...
A simple algorithm to detect balance in signed graphs
(Elsevier, 1980-09)
We develop a natural correspondence between marked graphs and balanced signed graphs, and exploit it to obtain a simple linear time algorithm by which any signed graph may be tested for balance.