1. Trace and Differences of Idempotents in C*-Algebras

   • A. M. Bikchentaev

   OriginalPaper 29 June 2019 Pages: 641 - 648

2. An Operator Formula for the Shift of the Solution of the Cauchy Problem for an abstract Euler-Poisson-Darboux Equation

   • A. V. Glushak

   OriginalPaper 29 June 2019 Pages: 649 - 656

3. A Sharp Jackson Inequality in L_p(ℝ^d) with Dunkl Weight

   • D. V. Gorbachev
   • V. I. Ivanov

   OriginalPaper 29 June 2019 Pages: 657 - 673

4. Conditions for the L_{p, λ}-Boundedness of the Riesz Potential Generated by the Gegenbauer Differential Operator

   • V. S. Guliev
   • É. Dzh. Ibragimov

   OriginalPaper 29 June 2019 Pages: 674 - 683

5. Definable Elements of Definable Borel Sets

   • V. G. Kanovei
   • V. A. Lyubetsky

   OriginalPaper 29 June 2019 Pages: 684 - 693

6. On Nonextendable Solutions and Blow-Ups of Solutions of Pseudoparabolic Equations with Coercive and Constant-Sign Nonlinearities: Analytical and Numerical Study

   • I. I. Kolotov
   • A. A. Panin

   OriginalPaper 29 June 2019 Pages: 694 - 706

7. Jackson-Type Inequalities in the Spaces S^(p,q) (σ^m−1)

   • R. A. Lasuriya

   OriginalPaper 29 June 2019 Pages: 707 - 719

8. Some Mysterious-Looking ₂F₁-Series through the Telescoping Method

   • Nadia N. Li
   • Wenchang Chu

   OriginalPaper 29 June 2019 Pages: 720 - 727

9. Transformation Operators for Perturbed Harmonic Oscillators

   • G. M. Masmaliev
   • A. Kh. Khanmamedov

   OriginalPaper 29 June 2019 Pages: 728 - 733

10. Elliptic Problems with Nonlocal Potential Arising in Models of Nonlinear Optics

    • A. B. Muravnik

    OriginalPaper 29 June 2019 Pages: 734 - 746

11. Rees Algebras of a Class of Graded Ideals

    • G. Restuccia
    • R. Utano

    OriginalPaper 29 June 2019 Pages: 747 - 755

12. On the Similarity of Certain Integer Matrices with Single Eigenvalue over the Ring of Integers

    • S. V. Sidorov

    OriginalPaper 29 June 2019 Pages: 756 - 762

13. Quasitoric Totally Normally Split Representatives in the Unitary Cobordism Ring

    • G. D. Solomadin

    OriginalPaper 29 June 2019 Pages: 763 - 780

14. Fixed Points of a φ-G-Contractive Mapping with Respect to a c-Distance on an Abstract Metric Space Endowed with a Graph

    • K. Fallahi
    • G. Soleimani Rad

    OriginalPaper 29 June 2019 Pages: 781 - 788

15. Asymptotics, Related to Billiards with Semi-Rigid Walls, of Eigenfunctions of the ▽D(x)▽ Operator in Dimension 2 and Trapped Coastal Waves

    • A. Yu. Anikin
    • S. Yu. Dobrokhotov
    • A. V. Tsvetkova

    Short Communications 29 June 2019 Pages: 789 - 794

16. Models of Triple Covers

    • A. Kresch
    • Yu. Tschinkel

    Short Communications 29 June 2019 Pages: 795 - 797

17. On the Completeness of a Part of Root Vectors for a Class of Third-Order Quasi-Elliptic Operator Pencils

    • S. S. Mirzoev
    • A. T. Gazilova

    Short Communications 29 June 2019 Pages: 798 - 801

18. A New Proof of the Protasov-Voynov Theorem on Semigroups of Nonnegative Matrices

    • Yu. A. Al’pin
    • V. S. Al’pina

    OriginalPaper 29 June 2019 Pages: 805 - 811

19. The Composition Operator on Mixed-Norm Lebesgue Spaces

    • N. A. Evseev
    • A. V. Menovshchikov

    OriginalPaper 29 June 2019 Pages: 812 - 817

20. Homogeneous Locally Nilpotent Derivations of Nonfactorial Trinomial Algebras

    • Yu. I. Zaitseva

    OriginalPaper 29 June 2019 Pages: 818 - 830

21. Solvability of a Thermoviscoelastic Model of the Motion of Solutions of Polymers Satisfying the Objectivity Principle

    • A. V. Zvyagin

    OriginalPaper 29 June 2019 Pages: 831 - 845

22. Kostant Prequantization of Symplectic Manifolds with Contact Singularities

    • D. B. Zot’ev

    OriginalPaper 29 June 2019 Pages: 846 - 863

23. Orthogonal Bases of Involution in Hadamard Algebras

    • D. N. Ivanov

    OriginalPaper 29 June 2019 Pages: 864 - 873

24. Counterexamples to Borsuk’s Conjecture with Large Girth

    • R. I. Prosanov

    OriginalPaper 29 June 2019 Pages: 874 - 880

25. A Short Note on a q-Analog of Modified Stancu—Beta Operators

    • P. Sharma
    • G. S. Rathore

    OriginalPaper 29 June 2019 Pages: 881 - 887

26. Some Results on the \({\cal F}{\rm{\Phi }}\)-Hypercenter of Finite Groups

    • J. P. Tang
    • J. Zhang
    • L. Miao

    OriginalPaper 29 June 2019 Pages: 888 - 893

27. On Formal Buchstaber Groups of Special Form

    • A. V. Ustinov

    OriginalPaper 29 June 2019 Pages: 894 - 904

28. Estimate of the Norm of the Hermite—Fejér Interpolation Operator in Sobolev Spaces

    • A. I. Fedotov

    OriginalPaper 29 June 2019 Pages: 905 - 916

29. On Hamiltonian Systems Integrable in Elliptic Functions That Describe Waves over Underwater Banks and Ridges

    • Yu. V. Brezhnev
    • A. V. Tsvetkova

    Short Communications 29 June 2019 Pages: 917 - 922

30. Inverse Problems for the Sturm—Liouville Operator with Discontinuity Conditions

    • I. M. Guseinov
    • F. Z. Dostuev

    Short Communications 29 June 2019 Pages: 923 - 928

31. On the Homogenization of Periodic Hyperbolic Systems

    • Yu. M. Meshkova

    Short Communications 29 June 2019 Pages: 929 - 934

32. On Some Nonlinear Diophantine Inequalities with Primes

    • A. P. Naumenko

    Short Communications 29 June 2019 Pages: 935 - 940

33. Example of a Stable but Fiberwise Nonstable Bundle on the Twistor Space of a Hyper-Kähler Manifold

    • A. Yu. Tomberg

    Short Communications 29 June 2019 Pages: 941 - 945