Criteria of univalence and fully \alpha--accessibility for p--harmonic   and p--analytic functions
  In this article, we present univalence criteria for polyharmonic and polyanalytic functions. Our approach yields new a criterion for a polyharmonic functions to be fully $\alpha$--accessible. Several examples are presented to illustrate the use of these criteria. 
K. F. Amozova, E. G. Ganenkova, and S. Ponnusamy
math.CV