WEYL GROUPS OF THE REDUCED NON-SIMPLY LACED 3-EXTENDED AFFINE ROOT SYSTEMS

Tadayoshi Takebayashi (Japan)

Received February 5, 2008

Abstract

We describe the Weyl groups associated to the reduced non-simply laced 3-extended affine root systems [1, 6] in terms of the 3-extended affine diagrams.

Keywords and phrases: non-simply laced, 3-extended affine root system, Weyl group.