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1)  degenerate parabola
退化抛物线
2)  parabolic degeneracy
抛物退化线
1.
Complex equations of mixed (elliptic-hyperbolic) type with parabolic degeneracy;
带抛物退化线的混合(椭圆-双曲)型方程(英文)
2.
The Tricomi problem of second order equations of mixed type in a special domain was posed and discussed by previous authors,The present paper deals with the discontinuous Riemann-Hilbert problem for first order complex equations of mixed(elliptic-hyperbolic) type with parabolic degeneracy.
本文讨论带抛物退化线的一阶混合型(椭圆 双曲)型复方程的间断Riemann Hilbert边值问题。
3.
The paper deals with the discontinuous oblique derivative problems for second order linear equations of mixed (elliptic-hyperbolic) type with parabolic degeneracy,which include the discontinuous Tricomi problem for Chaplygin equation as a special case.
讨论了带抛物退化线的二阶混合型(椭圆-双曲型)方程的间断斜微商边值问题。
3)  degenerate parabolic
退化抛物
1.
The properties of the solution to some degenerate parabolic equation with shift element are considered in this paper.
对一类具有扰动项的退化抛物方程,考虑其解的性质。
4)  Non-linear retrogressive projective equation
非线性退化抛物方程
5)  nonlinear degenerate parabolic equation
退化非线性抛物型方程
1.
Lions has proved the existence and uniqueness of global solutions to the initial-boundary value problem for a class of nonlinear degenerate parabolic equation by mean of compactness principle,but the decay property is considered by few people.
L ions用紧致性方法证明了一类退化非线性抛物型方程初边值问题整体解的存在唯一性,但解的衰减性很少有人考虑。
6)  semilinear degenerate parabolic system
半线形退化抛物方程组
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性质:(一)即衰退。生物物种因发生变异而使原有遗传性状发生对其自身生存或(和)对人类实践应用带来不利影响的改变,例如工业发酵菌种(株)生产能力的下降,植物病原菌寄生能力的下降,以及有关菌种其他形态、生理、遗传、生态等性状的非典型化改变等。(二)历经每次复制后,与最初的或前次的图像相比较,其图像质量的变化。这种退化是以分辨率、边缘锐度、图形尺寸的变化和缺陷密度来度量的。一般可以预示这种退化因每次复制而加剧。

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