Harmonic Maps Between Riemannian Polyhedra

ISBN-13: 9780521773119 / Angielski / Twarda / 2001 / 312 str.

James Eells; J. Eells; B. Fuglede

Opis

This research-level monograph on harmonic maps between singular spaces sets out much new material on the theory, bringing all the research together for the first time in one place. Riemannian polyhedra are a class of such spaces that are especially suitable to serve as the domain of definition for harmonic maps. Their properties are considered in detail, with many examples being given, and potential theory on Riemmanian polyhedra is also considered. The work will serve as a concise source and reference for all researchers working in this field or a similar one.

Recenzje

'This book can be highly recommended, both to specialists in the field, who will find a direct interest, and to geometers and analysts, who will find a source containing a large amount of material, with precise references. The organization of the chapters is excellent.' Luc Lemaire, Bulletin of the London Mathematical Society

Spis treści

Gromov's preface; Preface; 1. Introduction; Part I. Domains, Targets, Examples: 2. Harmonic spaces, Dirichlet spaces and geodesic spaces; 3. Examples of domains and targets; 4. Riemannian polyhedra; Part II. Potential Theory on Polyhedra: 5. The Sobolev space W1,2(X). Weakly harmonic functions; 6. Harnack inequality and Hölder continuity for weakly harmonic functions; 7. Potential theory on Riemannian polyhedra; 8. Examples of Riemannian polyhedra and related spaces; Part III. Maps between Polyhedra: 9. Energy of maps; 10. Hölder continuity of energy minimizers; 11. Existence of energy minimizers; 12. Harmonic maps - totally geodesic maps; 13. Harmonic morphisms; 14. Appendix A. Energy according to Korevaar-Schoen; 15. Appendix B. Minimizers with small energy decay; Bibliography; Special symbols; Index.