Parametric Lie Group Actions on Global Generalised Solutions of Nonlinear PDEs - Rosinger, Elemer E.
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  • Broschiertes Buch

This book presents a solution of the harder part of the problem of defining globally arbitrary Lie group actions on such nonsmooth entities as generalised functions. Earlier, in part 3 of Oberguggenberger & Rosinger, Lie group actions were defined globally - in the projectable case - on the nowhere dense differential algebras of generalised functions An, as well as on the Colombeau algebras of generalised functions, and also on the spaces obtained through the order completion of smooth functions, spaces which contain the solutions of arbitrary continuous nonlinear PDEs. Further details can be…mehr

Produktbeschreibung
This book presents a solution of the harder part of the problem of defining globally arbitrary Lie group actions on such nonsmooth entities as generalised functions. Earlier, in part 3 of Oberguggenberger & Rosinger, Lie group actions were defined globally - in the projectable case - on the nowhere dense differential algebras of generalised functions An, as well as on the Colombeau algebras of generalised functions, and also on the spaces obtained through the order completion of smooth functions, spaces which contain the solutions of arbitrary continuous nonlinear PDEs. Further details can be found in Rosinger & Rudolph, and Rosinger & Walus [1,2]. To the extent that arbitrary Lie group actions are now defined on such nonsmooth entities as generalised functions, this result can be seen as giving an ans wer to Hilbert's fifth problem, when this problem is interpreted in its original full gener ality, see for details chapter 11.
  • Produktdetails
  • Mathematics and Its Applications 452
  • Verlag: Springer Netherlands
  • Softcover reprint of hardcover 1st ed. 1998
  • Seitenzahl: 260
  • Erscheinungstermin: 9. Dezember 2010
  • Englisch
  • Abmessung: 244mm x 170mm x 14mm
  • Gewicht: 455g
  • ISBN-13: 9789048150939
  • ISBN-10: 9048150930
  • Artikelnr.: 32106364
Inhaltsangabe
Preface. 1. Introduction. 2. Actions on Functions, Difficulties. 3. Parametric Representation of Functions. 4. Action on Parametric Representations. 5. Parametric Functions as Solutions. 6. Rarefaction Waves and Riemann Solvers of the Nonlinear Shock Wave Equation. 7. Arbitrary Nonlinear Lie Group Actions on Generalised Functions. 8. Nonprojectable Lie Group Symmetries of Rarefaction Waves and Riemann Solvers. 9. General Parametric Approach to Lie Symmetries. 10. Projectable Lie Group Actions and Hilbert's Fifth Problem. 11. Nonprojectable Lie Group Actions and an Answer to Hilbert's Fifth Problem. 12. Singularities and the Nowhere Dense Algebras of Generalised Functions. 13. Lie Semigroup Actions and Semisymmetries. Appendix. References. Index.
Rezensionen
E.E. Rosinger

Parametric Lie Group Actions on Global Generalised Solutions of Nonlinear PDEs

Including a Solution to Hilbert's Fifth Problem

"This book presents a novel approach to Lie group actions on ordinary and generalized functions, based on parametric representation. This allows a global definition of arbitrary nonlinear Lie group actions on functions, including generalized functions. The parametric approach also makes possible a global definition for Lie semigroup actions. It is shown that the usual Lie group symmetries of classical solutions of smooth nonlinear PDEs will remain Lie group symmetries of generalized solutions of such equations."

-MATHEMATICAL REVIEWS