| 一类多孔介质气流模型的正解 |
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| 引用本文： | 刘希玉.一类多孔介质气流模型的正解[J].系统科学与数学,1998,18(1):125-128. |
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| 作者姓名： | 刘希玉 |
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| 作者单位： | 山东师范大学数学研究所!济南，250014 |
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| 基金项目： | 山东省自然科学基金，国家自然科学基金 |
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| 摘 要： | 多孔介质气体流动模型是一类特殊的边值问题，一方面它具有奇异性，另一方面，其微分算子不具有比较性质．本文通过证明这类问题使某种极值原理成立，从而得出了正解的存在性．
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| 关 键 词： | 多孔介质流动 边值问题 正解 |
POSITIVE SOLUTIONS TO A KIND OF MODELS OF FLOWS THROUGH POROUS MATERIALS |
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| Liu Xiyu.POSITIVE SOLUTIONS TO A KIND OF MODELS OF FLOWS THROUGH POROUS MATERIALS[J].Journal of Systems Science and Mathematical Sciences,1998,18(1):125-128. |
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| Authors: | Liu Xiyu |
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| Institution: | (Institute of Mathematics, Shandong Normal Universitg, Jinan 250014) |
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| Abstract: | The models of gas flows through porous material are some kinds of specialboundary value problems. They are singular on one hand while the differential operstors havenot comparison properties. In this paper we prove that some minimum principle is valid forthese problems and get the existence of positive solutions. |
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| Keywords: | Flows through porous materials boundary Value problems positive solutions |
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