It is well known that for a smoothing functional there exists a unique minimizing solution determined by a minimal function equation.
然而，直接求解由此得到的极小元素所满足的方程有较大的困难。
It is well known that for a smoothing functional there exists a unique minimizing solution determined by a minimal function equation.
然而，直接求解由此得到的极小元素所满足的方程有较大的困难。
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