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Titlebook: Dual Variational Approach to Nonlinear Diffusion Equations; Gabriela Marinoschi Book 2023 The Editor(s) (if applicable) and The Author(s),

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發(fā)表于 2025-3-21 18:29:20 | 只看該作者 |倒序瀏覽 |閱讀模式
書目名稱Dual Variational Approach to Nonlinear Diffusion Equations
編輯Gabriela Marinoschi
視頻videohttp://file.papertrans.cn/284/283299/283299.mp4
概述Presents technique for proving existence of solutions to nonlinear diffusion equations.Utilizes specific examples that can model real-world physical processes.Chapters develop methods for treating par
叢書名稱Progress in Nonlinear Differential Equations and Their Applications
圖書封面Titlebook: Dual Variational Approach to Nonlinear Diffusion Equations;  Gabriela Marinoschi Book 2023 The Editor(s) (if applicable) and The Author(s),
描述.This monograph explores a dual variational formulation of solutions to nonlinear diffusion equations with general nonlinearities as null minimizers of appropriate energy functionals. The author demonstrates how this method can be utilized as a convenient tool for proving the existence of these solutions when others may fail, such as in cases of evolution equations with nonautonomous operators, with low regular data, or with singular diffusion coefficients. By reducing it to a minimization problem, the original problem is transformed into an optimal control problem with a linear state equation. This procedure simplifies the proof of the existence of minimizers and, in particular, the determination of the first-order conditions of optimality. The dual variational formulation is illustrated in the text with specific diffusion equations that have general nonlinearities provided by potentials having various stronger or weaker properties. These equations can represent mathematical modelsto various real-world physical processes. Inverse problems and optimal control problems are also considered, as this technique is useful in their treatment as well..
出版日期Book 2023
關(guān)鍵詞Dual variational inequalities; Brezis-Ekeland principle; Legendre-Fenchel inequalities; Convex optimiza
版次1
doihttps://doi.org/10.1007/978-3-031-24583-1
isbn_softcover978-3-031-24585-5
isbn_ebook978-3-031-24583-1Series ISSN 1421-1750 Series E-ISSN 2374-0280
issn_series 1421-1750
copyrightThe Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl
The information of publication is updating

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Nonlinear Diffusion Equations with Slow and Fast Diffusion,n characterized by a singular diffusion coefficient .(., ., .) which blows-up at a finite value . of the solution .. More exactly, this has a growth with the exponent .???2 for .?∈?(1, 2) corresponding to a fast diffusion. The minimization problem with a constraint is introduced for this case in a m
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Dual Variational Approach to Nonlinear Diffusion Equations
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Nonlinear Diffusion Equations with Slow and Fast Diffusion,ing a variational principle, in the case when .(., ., ?) is provided by a continuous potential .(., ., ?) having a polynomial growth. The technique used to prove the existence consists in reducing the nonlinear problem to a convex optimization problem via the Legendre-Fenchel relations. A functional
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Weakly Coercive Nonlinear Diffusion Equations, considered in Chap. ., more precisely with a monotonically increasing time and space depending nonlinearity .(., ., ?) provided by a potential .(., ., ?) having a weak coercivity property. This hypothesis may apply to .(., ., .) of polynomial type with respect to ., with the exponent .?∈?(1, 2) cha
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An Optimal Control Problem for a Phase Transition Model,cussed in this chapter is to force a sharp interface separation between the states of the system by means of a distributed heat source and a boundary heat source as controls, while keeping its temperature at a certain average level. This is an optimal control problem with state and control restricti
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