Izv. Akad. Nauk SSSR Ser. Mat., 1979, Volume 43, Issue 4

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1979, Volume 43, Issue 4

	On the spectrum of a class of differential operators and some imbedding theorems O. D. Apyshev, M. Otelbaev		739
	A norm pairing in formal modules S. V. Vostokov		765
	On integrals of conjugate functions T. P. Lukashenko		795
	The index of elliptic operators over $C^*$-algebras A. S. Mishchenko, A. T. Fomenko		831
	Tensor products of unitary representations of the three-dimensional Lorentz group V. F. Molchanov		860
	The sum of the values of the divisor function in arithmetic progressions whose difference is a power of an odd prime M. M. Petechuk		892
	Some relations between the word and divisibility problems in groups and semigroups O. A. Sarkisyan		909
	The existence of a straight line on Fano 3-folds V. V. Shokurov		922