PDF(442 KB)
The Spectrum of 2nth Order Differential Operators with Complex Coefficients
Zhong WANG
Acta Mathematica Sinica, Chinese Series ›› 2000, Vol. 43 ›› Issue (5) : 787-796.
PDF(442 KB)
PDF(442 KB)
The Spectrum of 2nth Order Differential Operators with Complex Coefficients
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