Media type: E-Book Title: Fortschritte der Physik : Band 28, Heft 7: 1980 Contributor: Kaschluhn, F [Editor] Published: Berlin; Boston: De Gruyter, [2022] [Online-Ausgabe] Published in: Fortschritte der Physik ; Band 28, Heft 7 ; Progress of Physics Issue: Reprint 2021 Extent: 1 Online-Ressource (76 p) Language: German DOI: 10.1515/9783112522929 ISBN: 9783112522929 Identifier: Keywords: NON-CLASSIFIABLE ; SCIENCE / Physics / General Type of reproduction: [Online-Ausgabe] Origination: Footnote: In German Mode of access: Internet via World Wide Web Description: Frontmatter -- Contents -- 1. Introduction -- 2. Invariance Properties and Ward-Takahashi Identities -- 3. Equations for the Green's Functions in Pair Approximation -- 4. Calculation of the Quantities Pu(x,y; z) and Duv(x, y) -- 5. Calculation of the Matrices G(x, y; z, w), X(x, y; z) and J ( x , x; y) -- 6. Invariance Properties for the Approximate Solution -- 7. The Elementary Excitations -- 8. The Quasi-Particles -- 9. Dynamical Mapping -- 10. Boson Transformation -- 11. Macroscopic Equations -- 12. Ground State Energy -- 13. Conclusions -- 14. Appendix A -- 15. Appendix B -- 16. Appendix C -- 17. Appendix D -- 18. Appendix £ -- References -- Note Added in Proof -- Backmatter Access State: Restricted Access | Information to licenced electronic resources of the SLUB