Vol 10 No 2 (2020): Acta et Commentationes Exact and Natural Sciences
Acta et Commentationes Exact and Natural Sciences

The Acta et Commentationes scientific journal, the Exact and Natural Sciences series is a periodical publication, whose purpose is to reflect and develop the modern scientific phenomenon in the field of Exact and Natural Sciences (Mathematics, Physics, Computer Science, Chemistry, Biology, Geography); dissemination of the results of the scientific performance researches (fundamental and applicative) in the fields of profile; publicizing new technologies in order to implement them; addressing and elucidating the scientific investigative problems specific to the journal profiles.

Mitrofan Cioban
8-16
Professor Ion Valuță – teacher of many generations of students
pdf
Viorel BOSTAN, Ion BOSTAN, Maxim VACULENCO
17-27
Mathematical modeling of the multipair convex-concave teeth contact in precessional gearing
pdf (Русский)
A. V. Arhangel’skii
28-31
A note on some open problems in topological algebra
pdf (Русский)
Mitrofan Choban, Ekaterina Mihaylova
32-46
Submetrizable spaces and open mappings
pdf (Русский)
Mitrofan Choban, Ion Valuţă
47-53
On the monoid of endomorphisms of a topological universal algebra
pdf (Русский)
Dumitru Cozma, Angela Matei
54-67
On integrability of homogeneous rational equations
pdf (Русский)
Ion Jardan
68-74
The behaviour of the inverse operations in the class of preradicals in special cases
pdf (Русский)
Vasile Neagu
75-88
On the essential norm of singular operators with applications
pdf (Русский)
Vadim Repeşco
89-96
Qualitative study of the cuartic system with maximal multiplicity of the line at the infinity
pdf (Русский)
Inga Ţiţchiev, Constantin Gaindric
97-107
Perspective research at the Vladimir Andrunachievici Institute of Mathematics and Computer Science
pdf (Русский)
Galina Vornicescu
108-116
Regularization of some perturbed integral operators
pdf (Русский)
Mitrofan Cioban, Dumitru Cozma, Leonid Dohotaru
117–124
International Symposium "Actual Problems of Mathematics and Informatics" dedicated to the 90th birthday of professor Ion Valutse
pdf (Русский)