Relationships among Inverse Method, Bäcklund Transformation and an Infinite Number of Conservation Laws

It is shown that inverse method, Backlund transformation and an infinite number of conservation laws are closely related. The derivation of Backlund transformation from the fundamental equations of inverse method is explicitly shown. Also it is shown that conser· vation la~ is obtained in a simple way from the. Riccati form of inverse method and the derivation of conservation law from Backlund transformation is possible.