Is urban space, as a concentric agglomeration in expansion, in contraction, which duplicates itself, the solution of a dierential system ? Does urban geometry come from "chaotic" mutations, from cloning and aggregating districts ? And do they project their metrics on space ? Then where does its...

These pages briefly mention the assumption of indifference between residing in different locations which is embodied in spatial equilibrium. Sometimes, for a person, a pure indifference may result, namely gains and costs (monetary or not) are entirely compensated among locations; but sometimes...