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The Asymptotic Form of Eigenvalues for a Class of Sturm-Liouville Problem with One Simple Turning Point | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 11، دوره 15، شماره 1، خرداد 2004 اصل مقاله (117.31 K) | ||
| چکیده | ||
| The purpose of this paper is to study the higher order asymptotic distributions of the eigenvalues associated with a class of Sturm-Liouville problem with equation of the form w??=(?2f(x)?R(x)) (1), on [a,b, where ? is a real parameter and f(x) is a real valued function in C2(a,b which has a single zero (so called turning point) at point 0x=x and R(x) is a continuously differentiable function. We prove that, as a classical case, the asymptotic form of eigenvalues of (1) with periodic boundary condition w(a)=w(b), as well as with Semi-periodic boundary condition w?(a)=w?(b)w(a)=?w(b), are the same as Dirichlet boundary condition w?(a)=?w?(b)w(a)=0=w(b). We also study the asymptotic formula for the eigenvalues of (1) with boundary condition w?(a)=0=w(b), as well as w(a)=0=w?(b) and w?(a)=0=w(b). | ||
| عنوان مقاله [English] | ||
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| چکیده [English] | ||
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