Mat. Zametki, 1968, Volume 4, Issue 1

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1968, Volume 4, Issue 1

	On the factorization of the function $B_\alpha$ M. M. Dzhrbashyan, V. S. Zakharyan	3
	Methods of summation and best approximation L. P. Vlasov	11
	On the order of approximation of a continuous $2\pi$-periodic function by Fejer and Poisson means of its Fourier series V. V. Zhuk	21
	Differentiation with respect to nets and the Haar series V. A. Skvortsov	33
	Projectors in certain Banach lattices G. Ya. Lozanovskii	41
	Classes of convex sets as generalized metrical spaces V. A. Sorokin	45
	On the speed of convergence in the method of Fejer approximations I. I. Eremin	53
	Distribution of values of certain classes of additive arithmetic functions in algebraic number fields R. S. Baibulatov	63
	2-Groups with normal noncyclic subgroups F. N. Liman	75
	Neutral polyverbal operations O. N. Matsedonskaya	85
	On periodic groups of automorphisms of extremal groups S. N. Chernikov	91
	The convergence to a Gaussian process of the number of empty cells in the classical problem of distributing particles among cells Yu. V. Bolotnikov	97
	An existence principle for a periodic solution of a differential equation in Banach space N. V. Medvedev	105

Doctoral theses
	The theory of thermal potentials and its applications L. I. Kamynin	113