Opérateurs de Schrödinger avec champs magnétiques faibles et constants
Séminaire Goulaouic-Schwartz (1988-1989), Exposé no. 12, 11 p. 
@article{SEDP_1988-1989____A12_0,
     author = {Helffer, B. and Sj\"ostrand, J.},
     title = {Op\'erateurs de {Schr\"odinger} avec champs magn\'etiques faibles et constants},
     journal = {S\'eminaire Goulaouic-Schwartz},
     note = {talk:12},
     pages = {1--11},
     year = {1988-1989},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     mrnumber = {1032288},
     zbl = {0702.35185},
     language = {fr},
     url = {https://www.numdam.org/item/SEDP_1988-1989____A12_0/}
}
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Helffer, B.; Sjöstrand, J. Opérateurs de Schrödinger avec champs magnétiques faibles et constants. Séminaire Goulaouic-Schwartz (1988-1989), Exposé no. 12, 11 p.. https://www.numdam.org/item/SEDP_1988-1989____A12_0/

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