, ? 2 is almost optimal in the neighborhood of ? k for k = 0

, 2. all local maxima of J(? 2 ) are smaller than the local maxima of

, corresponding to the local maxima of J(? 2 ), we take ? 2 as the initial domain and restart the optimization algorithm, minimizing J(?)(? 4 )+J(?)(? 5 ) to obtain the optimal shape ? 3 , such that 1. ? 3 is almost optimal in the neighborhood of ? k for k = 0, vol.4240, p.5

, 2. all local maxima of J(? 3 ) are smaller than the local maxima of

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