Z22-graded Lie algebras - a
generalization of Supersymmetry
We are investigatin physical models with Z2Z2-graded symmetries. This types of algebraic structures are generalizations of superalgebras. There are two types of Z2Z2-graded structures, so called Z2Z2-graded Lie algebras end Z2Z2-graded Lie superalgebras.
Z2Z2-graded Lie superalgebras got scientific attention recently while Z2Z2-graded Lie algebras almost were not investigated. In this qualificaion exam we define operatoes of Z2Z2 Lie algebras representations acting on functions of exotic coordinates where three coordinates anticommute but they are not grassmannians. We also present a physical system which is symmetric under Z2Z2 Lie algebra. This system is defined in a normal 3+1-dimentional spacetime.