Dein left his role as vice-chairman of Arsenal with immediate effect on April 18, due to "irreconcilable differences" with the rest of the board.
At their general assembly meeting in Glasgow on Wednesday, it was confirmed that Aulas would take up the role.
© Copyright PA Sport Ltd 2007, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms