Alexander Moldovyan

Professor/St. Petersburg ITMO University

E-mail:

Nicolai Moldovyan

Head of the laboratory/St. Petersburg Institute for Informatics and

Automation of Russian Academy of Sciences

E-mail:

Victor Shcherbacov

Principal Researcher/Institute of Mathematics and Computer Science of

the Academy of Sciences of Moldova

E-mail:

Professor/St. Petersburg ITMO University

E-mail:

Nicolai Moldovyan

Head of the laboratory/St. Petersburg Institute for Informatics and

Automation of Russian Academy of Sciences

E-mail:

Victor Shcherbacov

Principal Researcher/Institute of Mathematics and Computer Science of

the Academy of Sciences of Moldova

E-mail:

- Choice Numbers of Multi-Bridge Graphs
- A remark on the weak Turán’s Theorem
###### At the request of the author (Received October 21, 2019), the article has been retracted.

- On the locating matrix of a graph and its spectral analysis
- Computing Comprehensive Gröbner Systems: A Comparison of Two Methods
- Stability Analysis of Efficient Portfolios in a Discrete Variant of Multicriteria Investment Problem with Savage's Risk Criteria
- A linear model for multidimensional Big Data visualization
**Non-commutative finite associative algebras of 2-dimension vectors**