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|a 10.1007/978-0-8176-4536-6
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|a Costa, David G.
|e author.
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| 245 |
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|a An Invitation to Variational Methods in Differential Equations
|h [electronic resource] /
|c by David G. Costa.
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| 250 |
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|a 1st ed. 2007.
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| 264 |
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1 |
|a Boston, MA :
|b Birkhäuser Boston :
|b Imprint: Birkhäuser,
|c 2007.
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| 300 |
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|a XII, 138 p. 9 illus.
|b online resource.
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|a Springer eBook Collection
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|a Critical Points Via Minimization -- The Deformation Theorem -- The Mountain-Pass Theorem -- The Saddle-Point Theorem -- Critical Points under Constraints -- A Duality Principle -- Critical Points under Symmetries -- Problems with an S1-Symmetry -- Problems with Lack of Compactness -- Lack of Compactness for Bounded ?.
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| 520 |
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|a This book is a short introductory text to variational techniques with applications to differential equations. It presents a sampling of topics in critical point theory with applications to existence and multiplicity of solutions in nonlinear problems involving ordinary differential equations (ODEs) and partial differential equations (PDEs). Five simple problems in ODEs which illustrate existence of solutions from a variational point of view are introduced in the first chapter. These problems set the stage for the topics covered, including minimization, deformation results, the mountain-pass theorem, the saddle-point theorem, critical points under constraints, a duality principle, critical points in the presence of symmetry, and problems with lack of compactness. Each topic is presented in a straightforward manner, and followed by one or two illustrative applications. The concise, straightforward, user-friendly approach of this textbook will appeal to graduate students and researchers interested in differential equations, analysis, and functional analysis.
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| 590 |
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|a Loaded electronically.
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| 590 |
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|a Electronic access restricted to members of the Holy Cross Community.
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| 650 |
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|a Differential equations.
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| 650 |
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|a Calculus of variations.
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| 650 |
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|a Partial differential equations.
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| 690 |
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|a Electronic resources (E-books)
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