V. I.Arnautov

Institute of Mathematics and Computer Science

Chisinau, Moldova

E-mail:

G. N.Ermacova

Transnistrian State University

25 October str., 128, Tiraspol, 278000

Moldova

E-mail:

Institute of Mathematics and Computer Science

Chisinau, Moldova

E-mail:

G. N.Ermacova

Transnistrian State University

25 October str., 128, Tiraspol, 278000

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