More than Two Dozen “Autisms”

More than a Dozen Alternative Ways of Spelling Gini

This paper surveys alternative ways of expressing the Gini mean difference and the Gini coefficient. It adds some new representations and new interpretations of Gini's mean difference and the Gini coefficient. All in all, there are over a dozen alternative ways of writing the Gini, which can be useful in developing applications to Gini-based statistics. Mailing Address: Department of Economics ...

When is Deceptive Message Production More Effortful than Truth-Telling? A Baker’s Dozen of Moderators

Deception is thought to be more effortful than telling the truth. Empirical evidence from many quarters supports this general proposition. However, there are many factors that qualify and even reverse this pattern. Guided by a communication perspective, I present a baker's dozen of moderators that may alter the degree of cognitive difficulty associated with producing deceptive messages. Among s...

Comparing More Than Two Groups

Switching with more than two colours

The operation of switching a finite graph was introduced by Seidel, in the study of strongly regular graphs. We may conveniently regard a graph as being a 2-colouring of a complete graph; then the extension to switching of an m-coloured complete graph is easy to define. However, the situation is very different. For m > 2, all m-coloured graphs lie in the same switching class. However, there are...

Turbulence in more than two and less than three dimensions.

We investigate the behavior of turbulent systems in geometries with one compactified dimension. A novel phenomenological scenario dominated by the splitting of the turbulent cascade emerges both from the theoretical analysis of passive scalar turbulence and from direct numerical simulations of Navier-Stokes turbulence.