The rotation number for almost periodic potentials
摘要:
We define and analyze the rotation number for the almost periodic Schrdinger operator L = d 2 / dx 2 + q ( x ). We use the rotation number to discuss (i) the spectrum of L ; (ii) its relation to the Korteweg-de Vries equation.
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DOI:
10.1007/BF01205510
被引量:
年份:
1983
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