BELOUADAH, SamiaKHADRAOUI, Naima SafaOUMHANI, Ali: supervisor2024-07-022024-07-022024-06-06https://dspace.univ-msila.dz/handle/123456789/43039In this work, some characterizations of positive implicative ordered filters in the structure of implicative semigroups are given. And we have discussed some properties of filters generated by a subset of an implicative semigroup. Also we give a condition for a special subset to be a ideal. Finally we study the notion of homeomorphisms between implicative semigroups.enImplicative semigroupsfilters (ideals) of implicativesemigroupsnegatively ordered implicative semigroupshomomorphism of implicative semigroupThesis