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The Sturm--Liouville problem with singular potential and the extrema of the first eigenvalue

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 نشر من قبل Anton Vladimirov
 تاريخ النشر 2012
  مجال البحث
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On the basis of the theory of Sturm--Liouville problem with distribution coefficients we get the infima and suprema of the first eigenvalue of the problem $-y + (q-lambda) y=0, y(0) -k_0^2 y(0) = y(1) + k_1^2 y(1) = 0$, where $q$ belongs to the set of constant-sign summable functions on $[0,1]$ such that $int_0^1 q dx=pm 1$.

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