A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis. 抛物面一种有与单坐标轴平行的抛物截面和与该轴垂直的椭圆截面的平面。
The existence of the renormalized solutions for the initial-boundary value problem of parabolic equation with small measure is established. 建立了一类带小测度的抛物型方程的初边值问题的重整化解的存在性。
The existence and stability of the optimal control is established based on the parabolic regularization method and the weak convergence technique. 用抛物正则化方法和弱收敛技巧,证明了最优控制的存在性和稳定性。
A parametric region of stability for parabolic systems with time delay is given. 并给出了一类时滞抛物系统稳定的参数区域。
Some sufficient conditions are established for the oscillation of systems of parabolic differential equations of neutral type. 建立了一类中立型抛物微分方程组解的振动的若干充分条件。
The analysis on nonlinear buckling of double-deck hyperbolic parabolic reticulated shell under the uniform pressure. 双层双曲抛物面网壳结构在均布压力作用下的非线性屈曲分析。
Positivity and Long Time Behavior of Solutions for a Degenerate Parabolic Equation 一类退化抛物型方程解的正性和长时间行为
The Boundary element approximation for the parabolic variational inequalities of the second kind is discussed. 讨论了第二类抛物型变分不等式的边界近似。
This paper deals with the existence of classical solutions for a degenerate parabolic equations and the blow up criteria. 讨论了退化方程初边值问题的古典解的存在性以及发生爆破的条件并分析了爆破点的位置。
The Existence of viscosity solutions of initial problem is proved for second order parabolic equations under certain conditions. 证明了在一定条件下二阶抛物型方程的初值问题的粘性解的存在性。
Furthermore, closed-form analytical solutions are derived for pipes with elliptical and parabolic shaped corrosion defects. 推导了等深度腐蚀、椭圆腐蚀和抛物线三种形状腐蚀缺陷管道的解析解。
The energy inequality and parabolic monotonicity inequality is essential for the regularity of a weak solution to this problem. 该问题弱解的能量不等式和抛物单调不等式在证明弱解的正则性时起关键作用。
The existence and blow-up of a class degenerate parabolic equation on semi-infinite space is considered. 讨论半无界空间上退缩抛物型方程解的存在性与爆破性质。
In this paper, a non-linear parabolic partial differential equation system with non-local boundary conditions is investigated. 本文第三章讨论的是如下非局部边界条件的反应扩散系统解的存在性和唯一性。
A refined space-time finite element method with moving grid for the parabolic equation; 本文讨论了一类半线性抛物型积分微分方程的间断时空有限元方法。
Research on the Implementation and Application of Parabolic Equation Method Based on Higher-order Pade Approximation 基于Pade高阶近似的抛物方程方法的实现与应用研究
The utility model relates to a drawing implement which is capable of drawing a parabolic curve and hyperbolic curve. 本实用新型是一种画抛物线和双曲线的画图工具。
Two threshold results for global existence and nonexistence of solutions for semi-linear hyperbolic equations and parabolic equations; 给出一类非线性双曲型方程初值问题解爆破的充分条件,并且证明问题局部广义解的存在性和唯一性。
The paper mainly discusses the lumped mass nonconforming finite element methods fora parabolic problem. 主要讨论了一类抛物问题的质量集中非协调有限元方法。
Large Global Existence and Blow-Up of Weak Solutions to a Degenerate Parabolic System 一类退化的抛物型方程组弱解的整体存在性和爆破
The multiple reciprocity method ( MRM) for the parabolic variational inequalities of the second kind was discussed. 本文讨论了第二类抛物型变分不等式中的MRM(多重互易方法)方法。
The present work deals with oblique derivative problems for second order quasilinear elliptic equations with parabolic degeneracy. 一类半线性椭圆方程解的存在性问题讨论了二阶拟线性退化椭圆型方程的斜微商问题。
A class of nonlinear singularly perturbed problem with ultra parabolic equation are considered. 讨论了一类超抛物型方程的非线性奇摄动问题。
The rotated parabolic equation method was presented to compute the bistatic radar cross section ( RCS). 并提出了旋转抛物线方程算法,实现了目标任意角度雷达散射截面的快速计算。
The elliptic and parabolic arcs can be represented exactly by the CT-B é zier curve. 利用CT-Bézier曲线能精确表示椭圆与抛物线弧。
Results Obtained some linear combination identities involving Hermite polynomials and parabolic cylinder function. 目的研究厄密多项式与抛物线柱函数线性组合的性质。
What are you examining parabolic arcs and classic projectile motion? 你是在检验经典抛物运动和抛物线么?
The first part of this paper discusses a linear singular parabolic problem. 文章的第一部分研究奇异线性抛物问题。
The nonlinear parabolic equation thus formed is linearized through proofread-correct method and is solved by LU decomposition. 应用预估校正法对所形成的非线性抛物型方程进行线性化,采用追赶法进行求解。
Abstract: The global existence and blow-up problem for the parabolic equations with nonlinear boundary conditions were studied. 文摘:讨论了带非线性边界条件的抛物型方程组的解的整体存在性及爆破问题。