Integral manifolds in H/sub /spl infin//-theory

The approach of this paper allows one to treat the 'soft-constrained' differential game associated with nonlinear H/sub /spl infin//-problems on a rather elementary level. The solutions of the Isaacs' PDE are obtained by the method of characteristics by integrating a Hamiltonian system of ODEs. The crucial elimination of the adjoint variable from the control law is taken care of by results in the theory of integral manifolds.<
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