Classification and normal forms for quantum mechanical eigenvalue cossings
Méthodes semi-classiques Volume 2 - Colloque international (Nantes, juin 1991), Astérisque no. 210  (1992), p. 115-134
@incollection{AST_1992__210__115_0,
     author = {Hagedorn, George A.},
     title = {Classification and normal forms for quantum mechanical eigenvalue cossings},
     booktitle = {M\'ethodes semi-classiques Volume 2 - Colloque international (Nantes, juin 1991)},
     author = {Collectif},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {210},
     year = {1992},
     pages = {115-134},
     language = {en},
     url = {http://www.numdam.org/item/AST_1992__210__115_0}
}
Hagedorn, George A. Classification and normal forms for quantum mechanical eigenvalue cossings, in Méthodes semi-classiques Volume 2 - Colloque international (Nantes, juin 1991), Astérisque, no. 210 (1992), pp. 115-134. http://www.numdam.org/item/AST_1992__210__115_0/

1. Hagedorn, G. A.: High Order Corrections to the Time-Dependent Born-Oppenheimer Approximation I: Smooth Potentials. Ann. Math. 124, 571-590 (1986).

Hagedorn, G. A.: High Order Corrections to the Time-Dependent Born-Oppenheimer Approximation I: Smooth Potentials. Erratum 126, 219 (1987).

2. Hagedorn, G. A.: High Order Corrections to the Time-Dependent Born-Oppenheimer Approximation II: Coulomb Systems. Comm. Math. Phys. 117, 387-403 (1988).

3. Hagedorn, G. A.: Electron Energy Level Crossings in the Time-Dependent Born-Oppenheimer Approximation. Theor. Chimica Acta. 77, 163-190 (1990).

4. Hagedorn, G. A.: Analysis of Energy Level Crossings in the Time-Dependent Born-Oppenheimer Approximation, (in preparation).

5. Lever, J., and Shaw, R.: Irreducible Multiplier Corepresentations and Generalized Inducing. Comm. Math. Phys. 38, 257-277 (1974).

6. Wigner, E. P. : Group Theory and its Application to the Quantum Mechanics of Atomic Spectra. New York : Academic Press, 1959.