Non-Abelian extensions of degree p3 and p4 in characteristic p > 2.

This paper describes in terms of Artin-Schreier equations field extensions whose Galois group is isomorphic to any of the four non-cyclic groups of order p 3 or the ten non-Abelian groups of order p 4 , p an odd prime, over a field of characteristic p. [ABSTRACT FROM AUTHOR]