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  ____       ___      ______     ___              
 |  _ \\    / _ \\   /_____//   / _ \\    ____    
 | |_| ||  | / \ ||  `____ `   | / \ ||  |    \\  
 | .  //   | \_/ ||  /___//    | \_/ ||  | [] ||  
 |_|\_\\    \___//   `__ `      \___//   |  __//  
 `-` --`    `---`    /_//       `---`    |_|`-`   
                     `-`                 `-`

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Text this: On constacyclic codes over Z 4 &amp;#x005B;v&amp;#x005D;/&amp;#x003C;v2 -v&amp;#x003E; and their Gray images

Text this: On constacyclic codes over Z 4 [v]/<v2 -v> and their Gray images