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內容簡介

With the publication of Volumes III and IV we have completed our presentation of the material which we originally planned as "Volume II" at the time of publication of Volume I. We originally promised the publisher that the entire series would be completed nine months after we submitted Volume I. Well! We have listed the contents of future volumes below. We are not foolhardy enough to make any predictions.

目錄

Preface
Introduction
Contents of Other Volumes
XII: PERTURBATION OF POINT SPECTRA
1. Finite-dimensional perturbation theory
Appendix Algebraic and geometric multiplicity of eigenvalues of finite matrices
2. Regular perturbation theory
3. Asymptotic perturbation theory
4. Summability methods in perturbation theory
5. Spectral concentration
6. Resonances and the Fermi golden rule
Notes
Problems
XlII: SPECTRAL ANALYSIS
1. The rain-max principle
2. Bound states of Schr‘6dinger operators I: Quantitative methods
3. Bound states of Schr‘odinger operators II: Qualitative theory
A. Is disc （H）finite or infinite?
B. Bounds on N（V） in the central case
C. Bounds on N（V） in the general two-body case
4. Locating the essential spectrum I: Weyl's theorem
5. Locating the essential spectrum III: Tire HVZ theorem
6. The absence of singular continuous spectrum I: General theory
7. The absence of singular continuous spectrum II: Smooth perturbations
A. Weakly coupled quantum systems
B. Positive commutators and repulsive potentials
C. Local smoothness and wave operators for repulsive potentials
8. The absence of singular continuous spectrum III: Weighted L2 spaces
9. The spectrum ofctensor products
10.The absence of singular continuous spectrum IV: Dilation analytic potentials
11. Properties of eigenfitnctions
12. Nondegeneracy of the ground state
Appendix 1 The Beurling-Deny criteria
Appendix 2 The Levy-Khintchinecformula
13. Absence of positive eigenvalues
Appendix Unique continuation theorems for Schrodinger operators
14. Compactness criteria and operators with compact resolvent
15. The asymptotic distribution of eigenvalues
16. Schr6dinger operators with periodic potentials
17. An introduction to the specral theory of non-self-adjoint operators
Notes
Problems
List of Symbols
Index

前言/序言

現代數學物理方法（第4捲） 下載 mobi epub pdf txt 電子書

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數學物理以研究物理問題為目標的數學理論和數學方法。它探討物理現象的數學模型，即尋求物理現象的數學描述，並對模型已確立的物理問題研究其數學解法，然後根據解答來詮釋和預見物理現象，或者根據物理事實來修正原有模型。“數學物理”，是數學和物理學的交叉領域，指應用特定的數學方法來研究物理學的某些部分。對應的數學方法也叫數學物理方法。包括微分方程、作用量理論等多方麵。

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