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  ______   __   __   _    _     _____     _____   
 /_   _//  \ \\/ // | |  | ||  |  ___||  / ____|| 
   | ||     \ ` //  | |/\| ||  | ||__   / //---`' 
  _| ||      | ||   |  /\  ||  | ||__   \ \\___   
 /__//       |_||   |_// \_||  |_____||  \_____|| 
 `--`        `-`'   `-`   `-`  `-----`    `----`

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發送短信 : Generalized heat kernel related to the operator Lkm and spectrum