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Titlebook: Generalized Characteristics of First Order PDEs; Applications in Opti Arik Melikyan Book 1998 Springer Science+Business Media New York 1998

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樓主
發(fā)表于 2025-3-21 18:34:45 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Generalized Characteristics of First Order PDEs
副標題Applications in Opti
編輯Arik Melikyan
視頻videohttp://file.papertrans.cn/383/382178/382178.mp4
圖書封面Titlebook: Generalized Characteristics of First Order PDEs; Applications in Opti Arik Melikyan Book 1998 Springer Science+Business Media New York 1998
描述In some domains of mechanics, physics and control theory boundary value problems arise for nonlinear first order PDEs. A well-known classical result states a sufficiency condition for local existence and uniqueness of twice differentiable solution. This result is based on the method of characteristics (MC). Very often, and as a rule in control theory, the continuous nonsmooth (non-differentiable) functions have to be treated as a solutions to the PDE. At the points of smoothness such solutions satisfy the equation in classical sense. But if a function satisfies this condition only, with no requirements at the points of nonsmoothness, the PDE may have nonunique solutions. The uniqueness takes place if an appropriate matching principle for smooth solution branches defined in neighboring domains is applied or, in other words, the notion of generalized solution is considered. In each field an appropriate matching principle are used. In Optimal Control and Differential Games this principle is the optimality of the cost function. In physics and mechanics certain laws must be fulfilled for correct matching. A purely mathematical approach also can be used, when the generalized solution is
出版日期Book 1998
關鍵詞Boundary value problem; Differential Games; First Order PDEs; Manifold; equation; function; partial differ
版次1
doihttps://doi.org/10.1007/978-1-4612-1758-9
isbn_softcover978-1-4612-7268-7
isbn_ebook978-1-4612-1758-9
copyrightSpringer Science+Business Media New York 1998
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沙發(fā)
發(fā)表于 2025-3-21 23:47:10 | 只看該作者
Computergestützte Audio- und VideotechnikThe classical method of characteristics (MC) was developed for the construction of the solution to nonlinear first order PDE:.subject to some boundary (initial) conditions specified on a hypersurface M C .Here u = . is the unknown function of n variables ...,..., ..is a scalar function (the Hamiltonian).
板凳
發(fā)表于 2025-3-22 03:25:00 | 只看該作者
https://doi.org/10.1007/978-3-322-83853-7Nonlinear first order PDEs arise systematically in extremal problems of dynamics, i.e. in Variation Calculus, Optimal Control and Differential Games. In Variation Calculus this equation is known as the Hamilton-Jacobi equation.
地板
發(fā)表于 2025-3-22 07:52:07 | 只看該作者
https://doi.org/10.1007/978-3-322-83073-9Consider a two-dimensional boundary value problem on the half-plane y > 0 of the ., y)-plane:
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發(fā)表于 2025-3-22 12:35:59 | 只看該作者
,Planung als Instrument der Führung,Consider a system of m equations with respect to m unknowns y1,…, ym:.which in vector notations looks like:.Here the variables xi,…, .. are parameters, . is the extended vector of n + m components.
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發(fā)表于 2025-3-22 12:53:07 | 只看該作者
Introduction,The classical method of characteristics (MC) was developed for the construction of the solution to nonlinear first order PDE:.subject to some boundary (initial) conditions specified on a hypersurface M C .Here u = . is the unknown function of n variables ...,..., ..is a scalar function (the Hamiltonian).
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發(fā)表于 2025-3-23 07:32:30 | 只看該作者
Computergestützte Audio- und Videotechnikood of a reference point ..u is the scalar unknown function, u: ..., and p = (P.,., ... is the vector of its gradient, p. =.u/.x., i = 1,…, n. The scalar function . will be called the Hamiltonian, .., where.is a domain in (2n + 1)-dimensional space of ..
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