Researches in Mathematics

The journal publishes, semiannually, research articles in basic areas of theoretical and applied mathematics, including, but not limited to: analysis, algebra, geometry, topology, probability theory and mathematical statistics, differential equations and mathematical physics.

The journal was published annually from 1963 to 1997 under the title “Researches on modern problems of summation and approximation of functions and their applications” and from 1998 to 2018 under the title “Dnipro University Mathematics Bulletin”.

Since 2022, the journal has been included to Scopus.

Attention: The template of the submission (.tex and .cls files) was updated on 28.05.2023. Please proceed to Author Guidelines to download and use the latest version.


Vol 31, No 2 (2023)

Published: online 26.12.2023

Table of Contents

Preamble
 
PDF
1-2

Articles

A Countable Intersection Like Characterization of Star-Lindelöf Spaces
P. Bal
PDF
3-7
Matroids related to groups and semigroups
D.I. Bezushchak
PDF
8-13
Derivations of rings of infinite matrices
O.O. Bezushchak
PDF
14-18
On the domains of convergence of the branched continued fraction expansion of ratio $$$H_4(a,d+1;c,d;\mathbf{z})/H_4(a,d+2;c,d+1;\mathbf{z})$$$
R.I. Dmytryshyn, I.-A.V. Lutsiv, O.S. Bodnar
PDF
19-26
On maximality of some solvable and locally nilpotent subalgebras of the Lie algebra $$$W_n(K)$$$
D.I. Efimov, M.S. Sydorov, K.Ya. Sysak
PDF
27-35
Norm attaining bilinear forms of $$${\mathcal L}(^2 d_{*}(1, w)^2)$$$ at given vectors
S.G. Kim
PDF
36-48
Free groups defined by finite $$$p$$$-automata
A.P. Krenevych, A.S. Oliynyk
PDF
49-55
On invariant ideals in group rings of torsion-free minimax nilpotent groups
A.V. Tushev
PDF
56-61
A Note on Sequence of Functions associated with the Generalized Jacobi polynomial
D. Waghela, S.B. Rao
PDF
62-78