Some Remarks on High Degree Polynomial Integrals of the Magnetic Geodesic Flow on the Two-Dimensional Torus S. V. AgapovA. A. ValyuzhenichV. V. Shubin OriginalPaper 06 August 2021 Pages: 581 - 585
Separated Lattices of Multiply \( \sigma \)-Local Formations N. N. Vorob’evI. I. StaselkaA. Hojagulyyev OriginalPaper 06 August 2021 Pages: 586 - 597
Horizontal Joinability in Canonical 3-Step Carnot Groups with Corank 2 Horizontal Distributions A. V. GreshnovR. I. Zhukov OriginalPaper 06 August 2021 Pages: 598 - 606
On Unconditional and Absolute Convergence of the Haar Series in the Metric of \( L^{p}[0,1] \) with \( 0<p<1 \) M. G. Grigoryan OriginalPaper 06 August 2021 Pages: 607 - 615
The Subspace of Almost Convergent Sequences R. E. ZvolinskiiE. M. Semenov OriginalPaper 06 August 2021 Pages: 616 - 620
Intersections of Three Nilpotent Subgroups in a Finite Group V. I. Zenkov OriginalPaper 06 August 2021 Pages: 621 - 637
A One-Parametric Method for Determining Parameters in the Schwarz–Christoffel Integral I. A. Kolesnikov OriginalPaper 06 August 2021 Pages: 638 - 653
On a Lemma Arising in the Solution of Waring’s Problem S. V. KonyaginV. Yu. Protasov OriginalPaper 06 August 2021 Pages: 654 - 656
About the Limit Spectra of Some Unbounded Selfadjoint Integral Operators V. B. Korotkov OriginalPaper 06 August 2021 Pages: 657 - 660
Refinement of the Relations between Mixed Smoothness Moduli in \( L_{1} \) and \( L_{q} \) Metrics M. K. PotapovB. V. Simonov OriginalPaper 06 August 2021 Pages: 661 - 677
Central Isotopes of \( (-1,1) \)-Algebras S. V. Pchelintsev OriginalPaper 06 August 2021 Pages: 678 - 690
Intrinsic Geometry and Boundary Structure of Plane Domains O. RainioT. SugawaM. Vuorinen OriginalPaper 06 August 2021 Pages: 691 - 706
On the Isomorphism of Sobolev-Type Classes on Metric Spaces A. S. Romanov OriginalPaper 06 August 2021 Pages: 707 - 718
The Root-Class Residuality of the Fundamental Groups of Graphs of Groups E. V. Sokolov OriginalPaper 06 August 2021 Pages: 719 - 729
Interval Extensions of Orders and Temporal Approximation Spaces A. I. Stukachev OriginalPaper 06 August 2021 Pages: 730 - 741
On the Decomposition of Partially Commutative Groups of Varieties and Their Defining Graphs E. I. Timoshenko OriginalPaper 06 August 2021 Pages: 742 - 746
A Multivalued History-Dependent Operator and Implicit Evolution Inclusions. II A. A. Tolstonogov OriginalPaper 06 August 2021 Pages: 747 - 762
A Separation Property of the Observer-Based Stabilizing Controller for Linear Delay Systems G. D. Hu OriginalPaper 06 August 2021 Pages: 763 - 772