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中国科学院数学与系统科学研究院期刊网
ISSN 1439-8516 CN 11-2039/O1
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On the Self-adjoint Extensions of Symmetric Ordinary Differential Operators with Middle Deficiency Indices
*
Sun Jiong
Acta Mathematica Sinica . 1986, (
2
): 152 -167 . DOI: 10.1007/BF02564877