Mat. Zametki, 1967, Volume 2, Issue 5

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1967, Volume 2, Issue 5

	Historical note		437
	Irreducible representations of a simple three-dimensional Lie algebra over a field of finite characteristic A. N. Rudakov, I. R. Shafarevich		439
	The structure of $n$-abelian groups L. A. Kaluzhnin		455
	A theorem on semisimple Lie $p$-algebras A. I. Kostrikin		465
	An approximate functional equation for the Hecke zeta-function of an imaginary quadratic field A. F. Lavrik		475
	The convergence of orthogonal series to $+\infty$ R. I. Osipov, A. A. Talalyan		483
	The best approximation of a class of functions by another class Yu. N. Subbotin		495
	The Lebesgue constant for the space of functions continuous in it and of bounded $p$-variation A. P. Terekhin		505
	The best approximation of periodic functions by trigonometric polynomials in $L^2$ N. I. Chernykh		513
	Approximative properties of sets in certain topological spaces A. L. Garkavi, A. M. Flomin		523
	Conditions for discreteness and finiteness of the negative spectrum of Schrödinger's operator equation M. G. Gasymov, V. V. Zhikov, B. M. Levitan		531
	Tangential fields of transversal foliations in У-systems D. V. Anosov		539
	Estimates of the highest derivatives for the solutions of elliptic and parabolic equations with continuous coefficients S. N. Kruzhkov		549
	The stability of periodic motions of autonomous systems with lag K. M. Tsoi, S. N. Shimanov		561