in the civil procedures act 1379 the act reference of arbitration is stipulated in agreement and arbitration clause due to no exact order of arbitration contract class. however, the civil law relies on the basis of consensual contracts. in contrast, the international commercial law relies on the arbitration contract as written form. according to the international commercial law, the arbitration...

The paper aims to construct nonlocal PT-symmetric integrable equations of fourth-order, from reductions a fourth-order system associated with the Lie algebra so(3,R). nonlocalities involved are reverse-space, reverse-time, and reverse-spacetime. All resulting possess infinitely many symmetries conservation laws.