带抛物退化线的混合(椭圆-双曲)型方程(英文)  

Complex equations of mixed (elliptic-hyperbolic) type with parabolic degeneracy

作　　者：闻国椿[1] 

机构地区：[1]北京大学数学学院,北京100871

出　　处：《宁夏大学学报（自然科学版）》2003年第3期196-198,共3页Journal of Ningxia University(Natural Science Edition)

摘　　要：主要介绍了带抛物退化线的双曲型和混合型方程的斜微商边值问题 ,这些问题包括Chaplygin方程的特殊情况Tricomi问题 ,并在研究这些问题时 。This paper mainly deals with oblique derivative problems for second order equations of hyperbolic and mixed type with parabolic degenearcy. Firstly the above problem for hyperbolic equations is introduced, and then the above problem for mixed equations is considered. The complex analytic method is used through the paper.

关 键 词：混合(椭圆—双曲)型方程 抛物退化线 斜微商边值问题 Chaplygin方程 TRICOMI问题 复分析 

分 类 号：O175.2[理学—数学] O241.82[理学—基础数学]