A NECESSARY AND SUFFICIENT CONDITION FOR THE DISCRETENESS OF SPECTRUM OF 2n TH-ORDER SELF-ADJOINT DIFFERENTIAL OPERATORS

Zhong WANG

Journal of Systems Science and Mathematical Sciences ›› 2000, Vol. 20 ›› Issue (2) : 224-227.

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PDF(190 KB)
Journal of Systems Science and Mathematical Sciences ›› 2000, Vol. 20 ›› Issue (2) : 224-227. DOI: 10.12341/jssms09567
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A NECESSARY AND SUFFICIENT CONDITION FOR THE DISCRETENESS OF SPECTRUM OF 2n TH-ORDER SELF-ADJOINT DIFFERENTIAL OPERATORS

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{{article.zuoZheEn_L}}. {{article.title_en}}. Journal of Systems Science and Mathematical Sciences, 2000, 20(2): 224-227 https://doi.org/10.12341/jssms09567

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