ESTIMATE FOR THE DISCRETE SPECTRUM OF A QUADRATIC FORM IN LAPLACIAN OPERATOR
Chen Zu-chi, Qian Chun-lin
Acta Mathematicae Applicatae Sinica ›› 1989, Vol. 12 ›› Issue (3) : 368-373.
ESTIMATE FOR THE DISCRETE SPECTRUM OF A QUADRATIC FORM IN LAPLACIAN OPERATOR
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