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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

2022, Number 5


Skew minimal surfaces supported by two triangular frames
M. M. Alimov
3
Meyer points and refined Meyer points for arbitrary harmonic functions
S. L. Berberyan
26
Theories in propositional logiń and the converse of substitution
I. A. Gorbunov
33
Computational complexity of the word problem in modal and pseudo-Boolean algebras with a small number of generators
M. Rybakov
42
Massera problem for some nonautonomous functional differential equations of neutral type with finite delay
M. Es-saiydy, I. Oumadane, M. Zitane
61

Brief communications
Iterative method for solving a non-linear edge problems with a point source
O. A. Zadvornov, G. O. Trifonova
74
Three-dimensional nonunimodular Lie groups with a Riemannian metric of an invariant Ricci soliton and a semi-symmetric metric connection
P. N. Klepikov, E. D. Rodionov, O. P. Khromova
80
Approximation of the Lebesgue constant of the Fourier operator by a logarithmic function
I. A. Shakirov
86


© Steklov Math. Inst. of RAS, 2026