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    • List of Articles Ariane GABRIEL Tallee Kakeu

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        1 - ‎Triangle Algebras and Relative Co-annihilators
        Emile Djomgoue Nana Ariane GABRIEL Tallee Kakeu Blaise Bleriot Koguep Njionou Celestin Lele
        Triangle algebras are an important variety of residuated lattices enriched with two approximation‎ ‎operators as well as a third angular point (different from 0 and 1)‎. ‎They provide a well-defined mathematical framework for formalizing the use of closed intervals deri More
        Triangle algebras are an important variety of residuated lattices enriched with two approximation‎ ‎operators as well as a third angular point (different from 0 and 1)‎. ‎They provide a well-defined mathematical framework for formalizing the use of closed intervals derived from a bounded lattice as truth values‎, ‎with a set of structured axioms‎. ‎This paper introduces the concept of relative co-annihilator of a subset within the framework of triangle algebras‎. ‎As filters of triangle algebras‎, ‎these relative co-annihilators are explored and some of their properties and characterizations are given‎. ‎A meaningful contribution of this work lies in its proof that the relative co-annihilator of a subset $T$ with respect to another subset $Y$ in a triangle algebra $\mathcal{L}$ inherits specific filter's characteristics of $Y$‎. ‎More precisely‎, ‎if $Y$ is a Boolean filter of the second kind‎, ‎then the co-annihilator of $T$ with respect to $Y$ is also a Boolean filter of the second kind‎. ‎The same statement applies when we replace the Boolean filter of the second kind with an implicative filter‎, ‎pseudo complementation filter‎, ‎Boolean filter‎, ‎prime filter‎, ‎prime filter of the third kind‎, ‎pseudo-prime filter‎, ‎or involution filter‎, ‎respectively‎. ‎Finally‎, ‎we establish some conditions under which the co-annihilator of $T$ relative to $Y$ is a prime filter of the second kind‎. Manuscript profile
      • Open Access Article

        2 - Stable Topology on Ideals for Residuated Lattices
        Ariane GABRIEL Tallee Kakeu Luc E. Diekouam Blaise Bleriot Koguep N. Celestin Lele Daniel Akume
        Residuated lattices are the major algebraic counterpart of logics without contraction rule, as they are more generalized logic systems including important classes of algebras such as Boolean algebras, MV-algebras, BL-algebras, Stonean residuated lattices, MTL-algebras a More
        Residuated lattices are the major algebraic counterpart of logics without contraction rule, as they are more generalized logic systems including important classes of algebras such as Boolean algebras, MV-algebras, BL-algebras, Stonean residuated lattices, MTL-algebras and De Morgan residuated lattices among others, on which filters and ideals are sets of provable formulas. This paper presents a meaningful exploration of the topological properties of prime ideals of residuated lattices. Our primary objective is to endow the set of prime ideals with the stable topology, a topological framework that proves to be more refined than the well-known Zariski topology. To achieve this, we introduce and investigate the concept of pure ideals in the general framework of residuated lattices. These pure ideals are intimately connected to the notion of annihilator in residuated lattices, representing precisely the pure elements of quantales. In addition, we establish a relation between pure ideals and pure filters within a residuated lattice, even though these concepts are not dual notions. Furthermore, thanks to the concept of pure ideals, we provide a rigorous description of the open sets within the stable topology. We introduce the i-local residuated lattices along with their properties, demonstrating that they coincide with local residuated lattices. The findings presented in this study represent an extension beyond previous work conducted in the framework of lattices, and classes of residuated lattices. Manuscript profile