PDF(272 KB)
A CRITERION FOR DISCRETE SPECTRUM OF A CLASS OF DIFFERENTIAL OPERATORS
Guang Sheng WEI
Journal of Systems Science & Complexity ›› 2003, Vol. 16 ›› Issue (1) : 95-100.
PDF(272 KB)
PDF(272 KB)
A CRITERION FOR DISCRETE SPECTRUM OF A CLASS OF DIFFERENTIAL OPERATORS
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