Acta et Commentationes Exact and Natural Sciences

Current Issue

Vol 18 No 2 (2024)
Published January 10, 2025
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,  Chemistry and Biology); 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.

The journal is included in:

1. the Register of Scientific Journals of the Republic of Moldova in category B and can be accessed at https://ibn.idsi.md/ro/vizualizare_revista/418

2. the Directory of Open Access Journals (DOAJ) and can be accessed at https://doaj.org/toc/2587-3644

 

The e-mail address of the journal is [email protected]

Full Issue
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Yaroslav Bihun, Oleh Ukrainets
7-17
Mathematical modelling of the immune response to infectious diseases with the influence of environmental factors
https://doi.org/10.36120/2587-3644.v18i2.7-17
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Alexandru Șubă
18-37
The problem of the center for cubic differential systems with two affine non-parallel invariant straight lines of total multiplicity three
https://doi.org/10.36120/2587-3644.v18i2.18-37
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Olga Vacaraș
38-54
Center problem for quartic differential systems with an affine invariant straight line of maximal multiplicity
https://doi.org/10.36120/2587-3644.v18i2.38-54
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Vasile Neagu, Petru Moloșnic
55-69
On the symbol of singular operators in the case of contour with corner points
https://doi.org/10.36120/2587-3644.v18i2.55-69
pdf
Lidia Mușinschi, Victor Pricop
70-77
On computation of the ordinary Hilbert series for Sibirsky graded algebras of differential system s(3,5)
https://doi.org/10.36120/2587-3644.v18i2.70-77
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Natalia Neagu
78-85
Stability conditions of unperturbed motion governed by the ternary differential system of Lyapunov-Darboux type with nonlinearities of fifth degree
https://doi.org/10.36120/2587-3644.v18i2.78-85
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Liubomir Chiriac, Natalia Josu, Natalia Lupashco
86-96
On a method of constructing topological quasigroups obeying certain laws
https://doi.org/10.36120/2587-3644.v18i2.86-96
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Cristina Bujac
97-113
Affine invariant conditions for a class of differential polynomial cubic systems
https://doi.org/10.36120/2587-3644.v18i2.97-113
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Inga Titchiev, Olesea Caftanatov
114-124
User perception analysis of the developed AR applications: satisfaction and development directions
https://doi.org/10.36120/2587-3644.v18i2.114-124
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Dumitru Cozma
125-137
Center conditions for a cubic differential system with one invariant straight line and one invariant conic
https://doi.org/10.36120/2587-3644.v18i2.125-137
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