Spatial Historical Dynamics: Mathematical Approach
Artemy S. Malkov, Keldysh Institute of Applied Mathematics RAS, Russia

Spatial Model of the World System Urban Dynamics
Andrew V. Korotaev

Spatial Distribution of “imperiogenesis”: Why do Large States Tend to Arise on the Nomadic Pastoralist/settled Agriculturalist Frontiers?
Peter Turchin, University of Connecticut, USA