JournalsprimsVol. 44 , No. 1DOI 10.2977/prims/1207921079

On the Presentations of Extended Affine Weyl Groups

  • Saeid Azam

    University of Isfahan, Iran
  • Valiollah Shahsanaei

    University of Isfahan, Iran
On the Presentations of Extended Affine Weyl Groups cover

Abstract

We give a finite presentation for reduced non-simply laced extended affine Weyl groups of arbitrary nullity. When nullity is less than or equal to 3, this presentation reduces to a very simple presentation in which the generators and relations can be easily read from a set of data attached to the root system.