1. Sequences of Independent Functions in Rearrangement Invariant Spaces

   • S. V. Astashkin

   OriginalPaper 31 March 2021 Pages: 189 - 198

2. Heights of Minor Faces in 3-Polytopes

   • O. V. Borodin
   • A. O. Ivanova

   OriginalPaper 31 March 2021 Pages: 199 - 214

   

3. About Global Solvability of a Multidimensional Inverse Problem for an Equation with Memory

   • D. K. Durdiev
   • Zh. D. Totieva

   OriginalPaper 31 March 2021 Pages: 215 - 229

4. On \( \sigma \)-Subnormality of Sylow Subgroups in a Finite Group

   • S. F. Kamornikov
   • V. N. Tyutyanov
   • O. L. Shemetkova

   OriginalPaper 31 March 2021 Pages: 230 - 238

5. The Coarea Formula for Vector Functions on Carnot Groups with Sub-Lorentzian Structure

   • M. B. Karmanova

   OriginalPaper 31 March 2021 Pages: 239 - 261

6. Closed Elementary Nets over a Field of Characteristic 0

   • V. A. Koibaev

   OriginalPaper 31 March 2021 Pages: 262 - 266

7. On Almost Compactness of Some Partially Integral Operators in \( L_{p} \)

   • V. B. Korotkov

   OriginalPaper 31 March 2021 Pages: 267 - 271

8. Almost Complete Transmission of Waves Through Perforated Cross-Walls in a Waveguide with Dirichlet Boundary Condition

   • S. A. Nazarov
   • L. Chesnel

   OriginalPaper 31 March 2021 Pages: 272 - 291

   

9. Approximations on Classes of Poisson Integrals by Fourier–Chebyshev Rational Integral Operators

   • P. G. Potseiko
   • E. A. Rovba

   OriginalPaper 31 March 2021 Pages: 292 - 312

10. Submaximal Soluble Subgroups of Odd Index in Alternating Groups

    • D. O. Revin

    OriginalPaper 31 March 2021 Pages: 313 - 323

11. Asymptotic Behavior of Solutions in One Predator–Prey Model with Delay

    • M. A. Skvortsova
    • T. Yskak

    OriginalPaper 31 March 2021 Pages: 324 - 336

12. Unique Solvability of a Linear Parabolic Problem with Nonlocal Time Data

    • V. N. Starovoitov

    OriginalPaper 31 March 2021 Pages: 337 - 340

13. Composition Factors of the Finite Groups Isospectral to Simple Classical Groups

    • A. M. Staroletov

    OriginalPaper 31 March 2021 Pages: 341 - 356

    

14. \( P \)-Stability of Some Classes of \( S \)-Acts

    • E. N. Stepanova
    • A. I. Krasitskaya

    OriginalPaper 31 March 2021 Pages: 357 - 363

15. Finite Groups with Generalized Subnormal Schmidt Subgroups

    • F. Sun
    • X. Yi
    • S. F. Kamornikov

    OriginalPaper 31 March 2021 Pages: 364 - 369

16. Examples of Mironov Cycles in Grassmannians

    • N. A. Tyurin

    OriginalPaper 31 March 2021 Pages: 370 - 376

17. On the Local Case in the Aschbacher Theorem for Symplectic and Orthogonal Groups

    • N. Yang
    • A. A. Galt

    OriginalPaper 31 March 2021 Pages: 377 - 382