Kaïdi, Noureddine; Rouleux, Michel Normal form for a two level Hamiltonian near a branching point (semi-classical limit). (Forme normale d’un hamiltonien à deux niveaux près d’un point de branchement (limite semi-classique).) (French. Abridged English version) Zbl 0797.58083 C. R. Acad. Sci., Paris, Sér. I 317, No. 4, 359-364 (1993). Summary: We give a canonical form for formally self-adjoint \(h\)-pseudo- differential operators on \(L^ 2(\mathbb{R}) \otimes \mathbb{C}^ 2\) near a point of self-intersection of the characteristic variety. Cited in 5 Documents MSC: 58J40 Pseudodifferential and Fourier integral operators on manifolds 47G30 Pseudodifferential operators Keywords:pseudo-differential operators; self-intersection PDF BibTeX XML Cite \textit{N. Kaïdi} and \textit{M. Rouleux}, C. R. Acad. Sci., Paris, Sér. I 317, No. 4, 359--364 (1993; Zbl 0797.58083) OpenURL