State University of Tiraspol

Chisinau, Technical University

Moldova

E-mail: ,

Chisinau, Technical University

Moldova

E-mail: ,

- Shape dimension of maps
- Semi-integral filters and semi-integral
**BL**-algebras - Orthogonality and retract orthogonality of operations
- An Approach for Determining the Optimal Strategies for an Average Markov Decision Problem with Finite State and Action Spaces
**The Center of the Lattice of Factorization Structures**- Properties of finite unrefinable chains of ring topologies for nilpotent rings
- Quartic differential systems with an invariant straight line of maximal multiplicity
- Distances on Free Semigroups and Their Applications
- Integrability conditions for a class of cubic differential systems with a bundle of two invariant straight lines and one invariant cubic