TY - JOUR T1 - Necessary and Sufficient Conditions Where One Γ-Semigroup is a Γ-Group AU - Sadiku, Sabri JO - Journal of Modern Mathematics and Statistics VL - 4 IS - 1 SP - 44 EP - 49 PY - 2010 DA - 2001/08/19 SN - 1994-5388 DO - jmmstat.2010.44.49 UR - https://makhillpublications.co/view-article.php?doi=jmmstat.2010.44.49 KW - ±-idempotent element KW -(± KW - ²)-inverse element KW -“-semigroups KW -“-algebraic structures KW -“-semigroup idempotent KW -“-group AB - In this study, researchers have studied the Γ-algebraic structures and some characteristics of them. According to Sen and Saha, we defined algebraic structures: Γ-semigroup, Γ-regular semigroup, Γ-idempotent semigroup, Γ-invers semigroup and Γ-group. Theorem 2, 3 and 4 proves the existence of Γ-group and gives necessary and sufficient conditions where one Γ-semigroup is a Γ-group. Finally, theorem 5 shows necessary and sufficient conditions where one Γ-regular semigroup is a Γ-group. In addition, for every Γ- algebraic structure that we mentioned before we give an original example. ER -