共查询到20条相似文献,搜索用时 15 毫秒
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Doklady Mathematics - The first boundary value problem for a second-order parabolic system with one spatial variable in a domain with nonsmooth lateral boundaries is considered. The domain can be... 相似文献
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Doklady Mathematics - We consider initial boundary value problems with boundary conditions of the first or second kind for one-dimensional (with respect to a spatial variable) Petrovskii parabolic... 相似文献
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Generalized Solution of the First Boundary Value Problem for Parabolic Monge-Ampere Equation
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The existence and uniqueness of generalized solution to the first boundary value problem for parabolic Monge-Ampère equation - ut det D²_xu = f in Q = Ω × (0, T], u = φ on ∂_pQ are proved if there exists a strict generalized supersolution u_φ, where Ω ⊂ R^n is a bounded convex set, f is a nonnegative bounded measurable function defined on Q, φ ∈ C(∂_pQ), φ(x, 0) is a convex function in \overline{\Omega}, ∀x_0 ∈ ∂Ω, φ(x_0, t) ∈ C^α([0, T]). 相似文献
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For a class of elliptic Hessian operators, one type of corresponding parabolic Hessian equations is studied on Riemannian manifolds. uniqueness of the admissible solution to the first initial boundary the equations are shown. The existence and value problem for 相似文献
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In this note we consider the first boundary value problem for a general parabolic Monge-Ampere equation u_t - log det(D_{ij}u) = f(x, t, u,D_2u) in Q, \quad u = φ(x, t) on ∂, Q It is proved that there exists a unique convex in x solution to the problem from C^{1+β,2+β/2}(\overline{Q}) under certain structure aod smoothness conditions (H3) - (H7). 相似文献
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Siberian Mathematical Journal - We study the well-posedness of a third boundary value problem for a multidimensional parabolic equation in the case when the coefficient of the... 相似文献
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Shao Shangen 《大学数学》1998,(1)
作者探索把双曲型方程初—边值问题中的初始函数在相应的本征函数族下展开成为Fourier级数,把初始函数延拓到整个空间,把初—边值问题转化成为初值问题,从而使这两类不同的定解问题的解法统一起来. 相似文献
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本文证明一类四阶非线性抛物型方程初边值问题整体广义解的存在性和唯一性,以及解的渐近性质,最后给出解爆破的充分条件. 相似文献
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General boundary value problems are considered for general parabolic (in the Douglas–Nirenberg–Solonnikov sense) systems. The dependence of solution uniqueness classes of these problems on the geometry of a nonbounded domain is established. 相似文献
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Doklady Mathematics - The first and second initial-boundary value problems for Petrovskii parabolic systems of the second order with coefficients satisfying the Dini condition in plane domains with... 相似文献
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The first boundary value problem of electroelasticity for a transversally isotropic plane with curvilinear cuts is investigated. The solvability of a system of singular integral equations is proved by using the potential method and the theory of singular integral equations. 相似文献
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A direct method for the numerical solution of the implicit finitedifference equations derived from a parabolic differential equationwith periodic spatial boundary conditions is presented in algorithmicfrom. Consideration is given to the stability of the roundingerrors involved in the solution process and numerical resultsare derived which compare favourably with those obtained fromthe analytical solution and a matrix spectral resolution methodwhich is closely allied to the method of lines. 相似文献
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研究了R-L导数定义下的分数维微分方程初值问题解的存在性及其唯一性,给出了方程的Peano存在定理和不等式定理,基于逐次逼近的方法,利用对分数阶R-L微夯方程构造的Tonelli序列和Ascoli引理证明分数阶R-L微分方程解的存在性,根据分数阶不等式定理证明了分数阶R-L微分方程解的唯一性. 相似文献
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We consider the first initial boundary-value problem for strongly parabolic systems in an infinite cylinder with nonsmooth boundary. We establish conditions for the existence of generalized solutions, an estimate for this solutions, and an estimate for the derivative of the solution. 相似文献
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Miao Chenxia 《东北数学》1994,(2)
TheGlobalClassicalSolutionoftheInitialBoundaryValueProblemforGeneralizedKdVEquation¥MiaoChenxia(苗晨霞)(InstituteofAppliedPhysic... 相似文献