The Asymptotic Distribution of Eigenvalues of Partial Differential Operators 论文

摘要

Main results Oscillatory integrals Construction of the wave group Singularities of the wave group Proof of main results Mechanical applications Appendix A. Spectral problem on the half-line Appendix B. Fourier Tauberian theorems Appendix C. Stationary phase formula Appendix D. Hamiltonian billiards: proofs Appendix E. Factorization of smooth functions and Taylor-type formulae References Principal notation Index.