The notion of initial ideal for an a polynomial ring appears in the theory Gröbner basis. Similarly to ideals, we can define algebra subalgebra ring, or more generally Laurent which is used SAGBI (Subalgebra Analogue Bases Ideals) finitely generated not always generated, and no general criterion finite generation known. aim this paper present new class subalgebras having non-finitely algebras. ...

In this paper, the authors extend concept of a t-intuitionistic fuzzy set to PMS-subalgebras PMS-algebras. The define PMS-subalgebra PMS-algebra and show that any intuitionistic is PMS-subalgebra. provide condition for an in be use their (α,β) level cuts characterize PMS-algebra. investigate whether homomorphic images inverse are also PMS-subalgebras. Furthermore, nonempty again Finally, Cartes...