In this paper, we first recall the three restrictive hypotheses outside which it is not possible to speak of an optimum, and then we specify in which context (decision aid) this article is located.

Mathematics education through problem posing is an evolving field that investigates the formulation of new mathematical problems as a means of deepening conceptual understanding and fostering creative ...

The pressing nature of water resource problems was set forth in Chapter 1. The solution to these problems is necessarily sought in research—inquiry into the basic natural and societal processes that ...