Rough Set Theory is a new mathematical approach to uncertain and vague data analysis. It is, no doubt, one of the most challenging areas of modern computer applications.

作为处理不确定和含糊问题的新的数学方法，粗糙集理论对于现代计算机应用，无疑是最具挑战性的领域之一。

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This Fourier transform also has applications in mathematical physics and quantum information theory.

这个傅立叶变换在数学物理和量子信息中都有其应用。

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The differential operator theory has many applications in the field of mathematical physics, mechanics and so on.

微分算子理论在数学物理、力学等领域有着广泛应用。

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