Alexander-equivalent Zariski pairs of irreducible sextics
  The existence of Alexander-equivalent Zariski pairs dealing with irreducible curves of degree 6 was proved by A. Degtyarev. However, up to now, no explicit example of such a pair was available (only the existence was known). In this paper, we construct the first concrete example. 
Christophe Eyral and Mutsuo Oka