DEFINING RELATIONS OF THE SIMPLY-LACED 4-EXTENDED AFFINE LIE ALGEBRAS

Tadayoshi Takebayashi (Japan)

Received March 27, 2008

Abstract

We give the defining relations of the simply-laced 4-extended affine Lie algebras in terms of the generators associated to 4-extended affine diagrams.

Keywords and phrases: 4-extended affine Lie algebra, simply-laced.