暴发户 发表于 2025-4-1 03:07:43
http://reply.papertrans.cn/59/5878/587752/587752_61.pngFLIRT 发表于 2025-4-1 08:59:31
A Method for Determining Strict Bounds on the Frequencies of Localized Phononsts of finding strict and close upper and lower bounds for the local-mode frequencies by means of a simple matrix calculation; it is not a Green’s function method, and therefore does not depend upon the availability of tabulated data. A full account of the method, with proofs and references to basic民间传说 发表于 2025-4-1 10:48:36
http://reply.papertrans.cn/59/5878/587752/587752_63.png