S4-symmetry on the Tits construction of exceptional Lie algebras and   superalgebras
  The classical Tits construction provides models of the exceptional simple Lie algebras in terms of a unital composition algebra and a degree three simple Jordan algebra. A couple of actions of the symmetric group of degree 4 on this construction are given. By means of these actions, the models provided by the Tits construction are related to models of the exceptional Lie algebras obtained from two different types of structurable algebras. Some models of exceptional Lie superalgebras are discussed too. 
Alberto Elduque (University of Zaragoza), Susumu Okubo (University of   Rochester)