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1986, Volume 22, Number 12  


People of Soviet science
Andreǐ Nikolaevich Tikhonov (on the occasion of his eightieth birthday)
A. V. Bitsadze, N. P. Erugin, V. A. Il'in, A. A. Samarskii
2027–2031
Andreǐ Vasil'evich Bitsadze (on the occasion of his seventieth birthday)
A. A. Dorodnitsyn, N. P. Erugin, V. A. Il'in, A. A. Samarskii, A. N. Tikhonov
2032–2040

Ordinary Differential Equations
On de la Vallée Poussin's differential inequality
N. V. Azbelev, A. I. Domoshnitskii
2041–2045
On the existence of periodic points in a neighborhood of a homoclinic point of a three-dimensional diffeomorphism
E. V. Vasil'eva
2045–2052
Spectral expansion of nonselfadjoint differential operators with periodic coefficients
O. A. Veliev
2052–2059
Necessary and sufficient conditions for being a Riesz basis of root vectors of second-order discontinuous operators
V. A. Il'in
2059–2071
Uniform boundedness with respect to the parameter of the solutions of singularly perturbed problems for systems of ordinary differential equations
N. C. Sklobovsky, V. A. Tupchiev
2072–2080

Partial Differential Equations
Estimation with respect to the order of convergence of function series in the solution of boundary value problems for second-order quasilinear parabolic equations
M. V. Boychuk, K. I. Bogatenko
2081–2087
The Green function of the Dirichlet problem for a second-order $B$-elliptic equation
A. Yu. Sazonov
2087–2097
Spectral expansions in the case when the orders of the associated functions exceed the order of the Riesz means
Ya. Sh. Salimov
2097–2107
Expansions in eigenfunctions of a singular elliptic operator
A. R. Khalmukhamedov
2107–2117
A mixed problem with an integral condition for some parabolic equations
N. J. Yurchuk
2117–2126

Numerical methods
A numerical method for solving a problem on the collision interaction of ultrashort light pulses in the resonance case
V. V. Drits, B. A. Samson, A. R. Khizhnyak
2127–2135
On the rate of convergence of the Rothe–Galerkin method for operator differential equations
A. G. Zarubin
2135–2144
Curvilinear finite elements of the class $C_1$ with singular coordinate functions
V. G. Korneev, K. A. Khusanov
2144–2157
An interpolation method for the numerical solution of the Laplace equation
V. A. Medvedev
2157–2162
A computational scheme for an approximation method
Yu. M. Rappoport
2162–2169

Short Communications
On the uniqueness of the solution of an equation with linear deviation of the argument in spaces with power weight
S. M. Aleydarov
2170–2171
Uniqueness of the solution of the generalized Poincaré problem of parabolic equations in noncylindrical domains with a nonsmooth boundary
R. D. Aliev
2171–2173
The Darboux problem for a second-order degenerate loaded integro-differential equation
Kh. K. Zhemukhov
2174–2176
The behavior of solutions of a mixed boundary value problem for a higher-order elliptic equation
E. G. Sitnikova
2176–2178
Convergence of a differential-difference scheme for shallow water equations in Lagrangian coordinates
V. V. Khutsishvili
2178–2181
Investigation of an almost periodic state of a nonlinear controllable system
V. N. Shchennikov
2182–2183

Chronicle
О семинаре по качественной теории дифференциальных уравнений в Московском университете
2184–2188

Letter to the editor
Letter to the editors: “On the Landau equation” [Differentsial'nye Uravneniya 19 (1983), no. 8, 1406–1416; MR0714807]
O. E. Buryak
2189
 
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