TY - JOUR AU - Hildebrant, J.A. TI - The translational degree of a semigroup. JO - Semigroup forum PY - 1984 VL - 30 SP - 331 EP - 350 KW - translational hull; ideal extensions; finite semigroups; weakly reductive semigroup; translational degree; free semigroups; null extensions; finite abelian semigroups; idempotents UR - http://eudml.org/doc/134728 ER -