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Nonphysical sheet for perturbed Jacobian matrices. (English) Zbl 0839.47007

St. Petersbg. Math. J. 6, No. 3, 619-633 (1995); translation from Algebra Anal. 6, No. 3, 185-199 (1994).
See the review in Zbl 0829.47011.

MSC:

47A40 Scattering theory of linear operators
35P25 Scattering theory for PDEs

Citations:

Zbl 0829.47011
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