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JOURNALS // Matematicheskii Sbornik // Archive

2022, Volume 213, Number 3


Lyapunov instability of stationary flows of a polymeric fluid in a channel with perforated walls
A. M. Blokhin, D. L. Tkachev
3
On the cohomology rings of partially projective quaternionic Stiefel manifolds
G. E. Zhubanov, F. Yu. Popelenskii
21
On the absence of global solutions of a system of ordinary differential equations
A. A. Kon'kov
41
A Chisini Theorem for almost generic covers of the projective plane
Vik. S. Kulikov
64
Bifurcations changing the homotopy type of the closure of an invariant saddle manifold of a surface diffeomorphism
E. V. Nozdrinova, O. V. Pochinka
81
Optimal recovery in weighted spaces with homogeneous weights
K. Yu. Osipenko
111
On the problem of periodicity of continued fraction expansions of $\sqrt{f}$ for cubic polynomials $f$ over algebraic number fields
V. P. Platonov, V. S. Zhgoon, M. M. Petrunin
139


© Steklov Math. Inst. of RAS, 2026