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AuthorWaerden, B. L. Van Der. author
TitleGroup Theory and Quantum Mechanics [electronic resource] / by B. L. van der Waerden
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg, 1974
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Descript VIII, 211 p. online resource


The German edition of this book appeared in 1932 under the title "Die gruppentheoretische Methode in der Quantenmechanik". Its aim was, to explain the fundamental notions of the Theory of Groups and their Representations, and the application of this theory to the Quantum Mechanics of Atoms and Molecules. The book was mainly written for the benefit of physicists who were supposed to be familiar with Quantum Mechanics. However, it turned out that it was also used by. mathematicians who wanted to learn Quantum Mechanics from it. Naturally, the physical parts were too difficult for mathematicians, whereas the mathematical parts were sometimes too difficult for physicists. The German language created an additional difficulty for many readers. In order to make the book more readable for physicists and matheยญ maticians alike, I have rewritten the whole volume. The changes are most notable in Chapters 1 and 6. In Chapter t, I have tried to give a mathematically rigorous exposition of the principles of Quantum Mechanics. This was possible because recent investigations in the theory of self-adjoint linear operators have made the mathematical foundation of Quantum Mechanics much clearer than it was in t 932. Chapter 6, on Molecule Spectra, was too much condensed in the German edition. I hope it is now easier to understand. In Chapter 2-5 too, numerous changes were made in order to make the book more readable and more useful


1. Fundamental Notions of Quantum Mechanics -- ยง 1. Wave Functions -- ยง 2. Hilbert Spaces -- ยง 3. Linear Operators -- ยง 4. Hypermaximal Operators -- ยง 5. Separation of Variables -- ยง 6. One Electron in a Central Field -- ยง 7. Perturbation Theory -- ยง 8. Angular Momentum and Infinitesimal Rotations -- 2. Groups and Their Representations -- ยง 9. Linear Transformations -- ยง 10. Groups -- ยง 11. Equivalence and Reducibility of Representations -- ยง 12. Representations of Abelian Groups. Examples -- ยง 13. Uniqueness Theorems -- ยง 14. Kroneckerโ{128}{153}s Product Transformation -- ยง 15. The Operators Commuting with all Operators of a Given Representation -- ยง 16. Representations of Finite Groups -- ยง 17. Group Characters -- 3. Translations, Rotations and Lorentz Transformations -- ยง 18. Lie Groups and their Infinitesimal Transformations -- ยง 19. The Unitary Groups SU(2) and the Rotation Group O3 -- ยง 20. Representations of the Rotation Group O3 -- ยง 21. Examples and Applications -- ยง 22. Selection and Intensity Rules -- ยง 23. The Representations of the Lorentz Group -- IV. The Spinning Electron -- ยง 24. The Spin -- ยง 25. The Wave Function of the Spinning Electron -- ยง 26. Diracโ{128}{153}s Wave Equation -- ยง 27. Two-Component Spinors -- ยง 28. The Several Electron Problem. Multiplet Structure. Zeeman Effect -- V. The Group of Permutations and the Exclusion Principle -- ยง 29. The Resonance of Equal Particles -- ยง 30. The Exclusion Principle and the Periodical System -- ยง 31. The Eigenfunctions of the Atom -- ยง 32. The Calculation of the Energy Values -- ยง 33. Pure Spin Functions and their Transformation under Rotations and Permutations -- ยง 34. Representations of the Symmetric Group Sn -- VI. Molecule Spectra -- ยง 35. The Quantum Numbers of the Molecule -- ยง 36. The Rotation Levels -- ยง 37. The Case of Two Equal Nuclei -- Author and Subject Index

Mathematics Group theory Physics Mathematics Group Theory and Generalizations Theoretical Mathematical and Computational Physics


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