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Via solving time-varying linear equations, this paper shows the Zhang dynamics (ZD) method. Besides, the gradient dynamics (GD) method, which was originally designed for constant problems solving, is generalized for time-varying linear equations solving. Then, the ZD and GD methods are exploited together to solve the tracking-control problem of a nonlinear(More)
After widely investigating the velocity-level redundancy resolution schemes for redundant robot manipulators, we focus one of our research directions on the relationship between different-level schemes, e.g., between position-level and velocitylevel redundancy-resolution schemes. In this paper, we propose a novel viewpoint; that is, there exists an(More)
In this paper, a novel kind of new fractals, named Zhang fractals, is yielded by using the discrete-time complex-valued Zhang dynamics (DTCVZD) to solve the nonlinear equations in the complex domain. Such a novel DTCVZD model is designed based on the elimination of an indefinite complex-valued error function, instead of a square-based non-negative energy(More)
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