即使初始条件十分光滑,双曲守恒律方程的解也可能出现间断。
The solutions of the Hyperbolic conservation laws might develop discontinuity even if the initial conditions are very smooth.
文中讨论了一类非双曲内部动态有界解的存在性。
The bounded solutions of non hyperbolic internal dynamics are discussed.
研究一类解耦非线性双曲守恒律系统的广义黎曼问题。
The generalized Riemann problem for a class of decoupled nonlinear hyperbolic system of conservation laws is studied.
研究了位于由两对双曲柱面构成的波导管电磁场里的单电子的性质,得到了单电子在场中狄拉克方程的新一类精确解;
A class of exact solutions of the Dirac equation are obtained for an electron in the electromagnetic field of a wave guide formed by two pairs of hyperbolic cylinders.
研究了一类边界条件下中立型脉冲双曲方程解的振动性,得到了每个非零解振动的若干充分条件。
In this paper, the oscillation properties of solutions under a kind of boundary conditions for impulsive hyperbolic differential equation of neutral type are studied.
本文分别研究了一维拟线性双曲方程组与多维双曲-抛物方程组解的大时间状态行为。
Here we study the large time behavior of solutions to quasilinear hyperbolic systems in one dimension and hyperbolic-parabolic systems in multi-dimensions.
考虑了一类具材料阻尼的非线性双曲型方程初边值问题整体解的不存在性。
Concerns with the nonexistence of global solutions to the initial boundary value problem for a nonlinear hyperbolic equation with material damping.
盘算机供解那些动力方程的效力曲交闭解到体解仿实的实时性,所以无必要当用一类更快更稳的数值供解方式。
The speed of solving these formulations in computer is relation to real time of simulation system directly, so it is necessary to use a quick and steady numerical method.
分析了曲堤油田防砂及解堵过程中的经验教训及要解决的关键技术问题;
This thesis chiefly analyses the experience and lessons in the course of sand exclusion and plugging removing in quit oilfield.
研究一类具有连续分布滞量的非线性中立型双曲方程解的振动性质。
To study the oscillatory of solutions to a class of nonlinear neutral hyperbolic differential equation with continuous distributed delay.
考虑一个带有松驰机制的双曲型守恒律组,证明了当初始数据适当小时,整体解的存在及光滑性。
A hyperbolic system of conservation laws with relaxation is considered, and the existence and smoothness of the solution is proved.
基本的方法是以双曲型偏微分方程组的简单波解为根据的。
The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.
本文给出一类双曲偏泛函微分方程解的振动准则。
In this paper, oscillation criteria of solutions for a certain partial functional differential equations are obtained.
基于双曲型线性偏微分算子理论,引入并研究了具有非零初始值的拟线性双曲型方程的定解问题。
Based on theory of hyperbolic linear partial differential operator, the initial value problem of a kind of quasi-linear hyperbolic equations with non-zero initial values was introduced and studied.
利用扩展的双曲正切函数法获得了(2 +1)维长波短波共振相互作用方程的多组新显式精确行波解。
Applying the modified extended tanh-function methods, many types of new explicit traveling wave solutions of the (2 + 1) dimensional long wave-short wave resonance interaction equations are obtained.
从傍轴波动方程出发,给出了超短双曲正割脉冲光束的解析解。
By starting from the paraxial wave equation, the analytical expression of the ultrashort Hyperbolic Secant pulsed beam are deduced.
本文以两个自变量的拟线性双曲型方程的古尔沙问题为例,应用反函数和积分不等式证明了等价积分方程组解的存在唯一性,同时给出了解的存在区域和已知参量的依赖关系。
In this paper, we show the domain of the existence of the solution on Goursat problem for quasi—linear hyperbolic equation and obtain the Theorem of the existence and uniqueness in above domain.
用双曲函数法,成功得到了非线性浅水长波近似方程组的精确孤立波解。
We successfully derived some exact solitary wave solutions of the nonlinear approximate equations with long waves in shallow water by using the hyperbola function method.
文中引用双曲数与双曲复函数,证明了上述边值问题的解在一般区域上的存在性。
The so called hyperbolic numbers and hyperbolic complex functions are introduced and used, and the existence of solutions for the above problem in the general domains is proved.
在一定条件下,证明一类拟线性伪双曲方程的第一初边值问题古典解的存在性。
The present paper provides a class of quasilinear pseudohyperbolic equation of the existence of classical solutions of the first boundary value problem under some suitable structure conditions.
本文证明了一类二阶非线性双曲—抛物耦合方程组小初值问题整体解的序在唯一性。
In this paper, we prove the global existence and uniqueness of the solutions of the small initial value problems for a class of second order nonlinear hyperbolic - parabolic coupled systems.
本文研究了一类具有连续偏差变元带中立项的双曲偏泛函微分方程解的H-振动性,给出了判别解H-振动的充分条件。
This paper studies the H-oscillations of hyperbolic partial functional in differential equations with deviating arguments and provides it with sufficient conditions.
所有这些基因都负责熟知的药品(诸如抗抑郁药、精神抑制药与包括百忧解、舒马曲坦与安理申等在内的止疼片)的分子靶标的编码。
The genes all encode molecular targets of well-known pharmaceuticals, such as antidepressants, antipsychotics and pain relievers including Prozac, Imitrex, and Aricept.
提高领导干部情商有"六步曲",即知情、解情、调情、识情、移情和传情。
There are six steps to improve EQ of leading cadres, which include perceiving emotions, comprehending emotions, regulating emotions, discerning emotions, transferring emotions and conveying emotions.
该试验采用50%的混合料蒸煮后,直接加入新型复合酶工艺,另外50%的混合料经蒸者后制曲,最后再混匀入池酶解、发酵。
We put new type complex enzymes into 50% admixture when it braized, the others 50% were made into leaven by ventilation. Then all of it were put into leaven pool to ferment.
研究了一类中立型双曲型泛函微分方程边值问题,得到了判定解是振动的新的方法,推广了已有的结果。
In this paper the boundary value problem for a neutral hyperbolic differential equation is studied. A new method for judgement of oscillation solution is obtained and is spreded known results.
根据曲板的边界条件给出三角级数的解析解和有限条法的近似解。
According to the boundary conditions of the curved slab, an analytical solution by trigonometric series and an approximate solution by method of finite strips have been given.
对于上述齐次双曲守恒律方程组与其近似模型之间解的比较,已经有人得到了相关结果。
There are some results on the comparison of weak solutions of homogeneous hyperbolic system and its approximate model.
考虑了一类具材料阻尼的非线性双曲型方程初边值问题整体解的不存在性。
In this paper, the nonexistence of global solutions to a semi-linear Kirchhoff equation with dynamic boundary conditions is considered.
考虑了一类具材料阻尼的非线性双曲型方程初边值问题整体解的不存在性。
In this paper, the nonexistence of global solutions to a semi-linear Kirchhoff equation with dynamic boundary conditions is considered.
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