Contents

Russian Mathematics

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Vol. 66, No. 3, 2022

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Isomorphism and Diffeomorphism of Semisimple Lie Groups

V. V. Gorbatsevich p. 1  abstract

On Visser’s Inequality Concerning an Estimation of Polynomial Coefficients

S. Gulzar, N. A. Rather and M. S. Wani p. 9  abstract

On the Achievable Level of Accuracy for the Solution of Abstract Ill-Posed Problems and Nonlinear Operator Equations in a Banach Space

M. Yu. Kokurin and A. B. Bakushinsky p. 16  abstract

Complete Solution of a Class of Differential Pursuit Games with Integral Constraint and Impulse Control

N. A. Mamadaliev and B. Kh. Khayitkulov p. 22  abstract

A New Application of (ϕ,δ)-Monotone Sequences

H. S. Özarslan and M. Ö. Şakar p. 30  abstract

Conjugate Rational Fourier–Chebyshev Operator and Its Approximation Properties

P. G. Potseiko and Ye. A. Rovba p. 35  abstract

Exact Inequalities between the Best Polynomial Approximations and Averaged Norms of Finite Differences in the B₂ Space and Widths of Some Classes of Functions

Kh. M. Khuromonov p. 50  abstract

Invariants of Coverings of Serre Fibrations

E. I. Yakovlev p. 59  abstract

On Some Properties in Sequences of Traces of Matrices’ Powers

A. N. Abyzov and M. M. Yamaleev p. 72  abstract

Plane Mechanical Problems of Straight Beams with a Deformable Fixed Section of Finite Length

V. N. Paimushin p. 75  abstract

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