## On the separation property of nonlinear second-order differential operators with matrix coefficients in weighted spaces.(English. Russian original)Zbl 1423.35327

J. Math. Sci., New York 241, No. 5, 589-595 (2019); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 141, 79-85 (2017).
Summary: We prove the separation property for a certain class of nonlinear second-order differential operators with variable matrix coefficients in weighted spaces, that, in general, are not weak perturbations of linear operators.

### MSC:

 35Q40 PDEs in connection with quantum mechanics 35J10 Schrödinger operator, Schrödinger equation
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### References:

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