Kenji Iohara (Universite de Lyon) Friday 4 November, 12-1pm, Place: Carslaw 375 On classification of Z^N-graded Lie algebras and their representations The classification of simple Z^N-graded Lie algebras with multiplicity 1 will be briefly explained. A generalization of the Witt algebra appears in this classification. Its certain type of representations will be also given together with its super-analogue.