Positive solutions for singular three-point boundary-value problems with sign changing nonlinearities depending on .
Prescribed performance control of underactuated surface vessels' trajectory using a neural network and integral time-delay sliding mode
To tackle the underactuated surface vessel (USV) trajectory tracking challenge with input delays and composite disturbances, an integral time-delay sliding mode controller based on backstepping is discussed. First, the law of virtual velocity control is established by coordinate transformation and the position error is caused to converge utilizing the performance function. At the same time, based on the estimation of velocity vector by the high-gain observer (HGO), radial basis function (RBF) neural...
Harmonic mappings into manifolds with boundary
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