It is proved that the substitituon mapping is a proper Fourier integral operator with generalized hypoellipticity.
证明了变量替换映
个具广义亚椭园性的适的富里
积分算子。
(①
②Francois Marie Charles, 1772-1837, 法国空想社会主义者, 社会改革家 ③Jean Baptiste Joseph, 1768-1830, 法国数学家, 物理学家)
，绕;变换变换变换变换红外光谱学分析；（变换）谐波（量）分析变换谱积分变换全息图变换光谱学It is proved that the substitituon mapping is a proper Fourier integral operator with generalized hypoellipticity.
证明了变量替换映个具广义亚椭园性的适的富里积分算子。
By using the method of coordination transformation and expandedness Fourier series, an analytic solution is obtained from studying the Newtonian fluids laminar flow in eccentric anulus.
采用坐标变换和函数展开成傅立级数的方法,推导出了牛顿流体偏心环空轴向流动速度场的严格数学解析解.
A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.
用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算傅立系数的种简便方法.
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