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On a General Feshbach Method1

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dc.contributor.author Messirdi, Bekkai
dc.contributor.author Benaicha, Slimane
dc.contributor.author Djaa, Mustapha
dc.contributor.author Rahmani, Abdelkader
dc.date.accessioned 2019-06-25T09:43:27Z
dc.date.available 2019-06-25T09:43:27Z
dc.date.issued 2007
dc.identifier.uri http://e-biblio.univ-mosta.dz/handle/123456789/11160
dc.description.abstract We present a general reduction Feshbach method that can be applied in particular to the spectral study of operators including the hamiltonian of the Born-Oppenheimer approximation and also to Fredholm operators. This method reduces the study on the first case to the one of a pseudodifferential matrix, and in the second case to a matrix acting between two finite dimensional euclidian spaces. The stability theorem of the Fredholm character and the index is originally obtained as a consequence of this reduction. en_US
dc.publisher Publié dans International Journal of Mathematical Analysis, Volume1 en_US
dc.subject Feshbach method en_US
dc.subject pseudodifferential operators en_US
dc.subject spectrum en_US
dc.subject resonances en_US
dc.title On a General Feshbach Method1 en_US
dc.type Article en_US

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