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On a class of non-self-adjoint periodic eigenproblems with boundary and interior singularities

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 نشر من قبل Lyonell Boulton
 تاريخ النشر 2010
  مجال البحث
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We prove that the spectrum of a certain PT-symmetric periodic problem is purely real. Our results extend to a larger class of potentials those recently found by Brian Davies [math.SP/0702122] and John Weir [arXiv:0711.1371].



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