| 一类混合椭圆——双曲型方程的正对称性的证明与推广 |
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| 引用本文： | 蒋桂凤.一类混合椭圆——双曲型方程的正对称性的证明与推广[J].台州学院学报,2007,29(6):7-10. |
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| 作者姓名： | 蒋桂凤 |
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| 作者单位： | 台州学院,数学与信息工程学院,浙江,临海,317000 |
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| 摘 要： | 利用变换证明了一类混合椭圆——双曲型方程可化为正对称组,并且对这一类型的方程进行了推广。
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| 关 键 词： | 椭圆--双曲型方程 正对称组:正定阵 |
| 文章编号： | 1672-3708（2007）06-0007-04 |
| 收稿时间： | 2007-09-11 |
| 修稿时间： | 2007-11-13 |
The Proof and Diffusion of Positive Symmetrical Characteristic of Equations of Mixed Elliptic-hyperbolic Type |
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| JIANG Gui-feng.The Proof and Diffusion of Positive Symmetrical Characteristic of Equations of Mixed Elliptic-hyperbolic Type[J].Journal of Taizhou University,2007,29(6):7-10. |
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| Authors: | JIANG Gui-feng |
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| Abstract: | In the paper, positive symmetrical characteristic of equations of mixed elliptic-hyperbolic type is studied by means of conversion. At the same time this type of equations is diffused. |
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| Keywords: | elliptic-hyperbolic type positive symmetrical characteristic positive definite matrix |
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