Text this: Generalization of distributional product of Dirac's delta in hypercone

 ______     ______   _    _    _    _    __   __  
|      \\  /_   _// | |  | || | || | ||  \ \\/ // 
|  --  //   -| ||-  | |/\| || | || | ||   \   //  
|  --  \\   _| ||_  |  /\  || | \\_/ ||   / . \\  
|______//  /_____// |_// \_||  \____//   /_//\_\\ 
`------`   `-----`  `-`   `-`   `---`    `-`  --`