Based on recent research by the author and his graduate students, this text describes novel variational formulations and resolutions of a large class of partial differential equations and evolutions, many of which are not amenable to the methods of the classical calculus of variations. While it contains many new results, the general and unifying framework of the approach, its versatility in solving a disparate set of equations, and its reliance on basic functional analytic principles, makes it suitable for an intermediate level graduate course. The applications, however, require a fair knowledge of classical analysis and PDEs which is needed to make judicious choices of function spaces where the self-dual variational principles need to be applied. It is the author's hope that this material will become standard for all graduate students interested in convexity methods for PDEs.
Nassif Ghoussoub is a Distinguished University Professor at the University of British Columbia. He was editor-in-chief of the Canadian Journal of Mathematics for the period 1993-2003, and has served on the editorial board of various international journals. He is the founding director of the Pacific Institute for the Mathematical Sciences (PIMS), and a co-founder of the MITACS Network of Centres of Excellence. He is also the founder and scientific director of the Banff International Research Station (BIRS). He is the recipient of many awards, including the Coxeter-James, and the Jeffrey-Williams prizes. He was elected Fellow of the Royal Society of Canada in 1993, and was the recipient of a Doctorat Honoris Causa from the Universite Paris-Dauphine in 2004.
Author(s): Nassif Ghoussoub (auth.)
Series: Springer monographs in mathematics
Edition: 1
Publisher: Springer-Verlag New York
Year: 2009
Language: English
Pages: 354
City: New York; London
Tags: Functional Analysis; Partial Differential Equations
Front Matter....Pages I-XIV
Front Matter....Pages 1-1
Introduction....Pages 1-22
Front Matter....Pages 23-24
Legendre-Fenchel Duality on Phase Space....Pages 25-48
Self-dual Lagrangians on Phase Space....Pages 49-65
Skew-Adjoint Operators and Self-dual Lagrangians....Pages 67-81
Self-dual Vector Fields and Their Calculus....Pages 83-96
Front Matter....Pages 97-98
Variational Principles for Completely Self-dual Functionals....Pages 99-117
Semigroups of Contractions Associated to Self-dual Lagrangians....Pages 119-145
Iteration of Self-dual Lagrangians and Multiparameter Evolutions....Pages 147-173
Direct Sum of Completely Self-dual Functionals....Pages 175-185
Semilinear Evolution Equations with Self-dual Boundary Conditions....Pages 187-201
Front Matter....Pages 203-204
The Class of Antisymmetric Hamiltonians....Pages 205-215
Variational Principles for Self-dual Functionals and First Applications....Pages 217-239
The Role of the Co-Hamiltonian in Self-dual Variational Problems....Pages 241-251
Direct Sum of Self-dual Functionals and Hamiltonian Systems....Pages 253-273
Superposition of Interacting Self-dual Functionals....Pages 275-283
Front Matter....Pages 285-286
Hamiltonian Systems of Partial Differential Equations....Pages 287-304
The Self-dual Palais-Smale Condition for Noncoercive Functionals....Pages 305-317
Navier-Stokes and other Self-dual Nonlinear Evolutions....Pages 319-344
Back Matter....Pages 345-354