from the perspective of theorists of international relations including functionalists and regionalists, establishment of cooperation and economic, commercial and transportation relations is among the suitable methods for fostering integration in international relations and deepening friendship, peace and stability particularly among regional countries. considering this fact, the authors believe...

Abstract In this paper we consider two piecewise Riemannian metrics defined on the Culler–Vogtmann outer space which call entropy metric and pressure . As a result of work McMullen, these can be seen as analogs Weil–Petersson Teichmüller closed surface. We show that while geometric analysis is similar to metric, from point view group theory, behave very differently than metric. Specifically, wh...