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1
High energy eigenfunctions of one-dimensional Schreodinger operators with polynomial potentials
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High energy eigenfunctions of one-dimensional Schreodinger operators with polynomial potentials

Eremenko, Alexandre ; Gabrielov, Andrei ; Shapiro, Boris

Computational methods and function theory, 2008, Vol.8 (2), p.17 [Periódico revisado por pares]

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On linear operators preserving the set of positive polynomials
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On linear operators preserving the set of positive polynomials

Guterman, Alexander ; Shapiro, Boris

Journal of fixed point theory and applications, 2008-09, Vol.3 (2), p.411-429 [Periódico revisado por pares]

Basel: SP Birkhäuser Verlag Basel

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