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An analog system for fixed point computation is described. The system is derived from a continuous time analog of the classical over-relaxed fixed point iteration. The dynamical system is proved to converge for nonexpansive mappings under all p norms, p/spl isin/(1,/spl infin/). This extends previously established results to not necessarily differentiable maps which are nonexpansive under the /spl infin/-norm. The system will always converge to a single fixed point in a connected set of fixed points. This allows the system to function as a complementary paradigm to energy minimization techniques for optimization in the analog domain. It is shown that the proposed technique is applicable to a large class of dynamic programming computations.
Borkar et al. (Tue,) studied this question.
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