高科技高中的一个完全基于数学原理的美术作业“美味微积分”，就挂在圣地亚哥机场里。
A High Tech High art project called Calculicious, based entirely on math principles, now hangs in the San Diego airport.
证明了变量替换映射是一个具广义亚椭园性的适的富里叶积分算子。
It is proved that the substitituon mapping is a proper Fourier integral operator with generalized hypoellipticity.
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