Overlap formulation of Majorana--Weyl fermions
  An overlap method for regularizing Majorana--Weyl fermions interacting with gauge fields is presented. A mod(2) index is introduced in relation to the anomalous violation of a discrete global chiral symmetry. Most of the paper is restricted to 2 dimensions but generalizations to 2+8k dimensions should be straightforward. 
Patrick Huet (University of Washington), Rajamani Narayanan   (University of Washington) and Herbert Neuberger (Rutgers Univ...