Izv. RAN. Ser. Mat., 1998, Volume 62, Issue 4

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1998, Volume 62, Issue 4

	Improved interpolation theorems for a class of linear operators E. I. Berezhnoi, V. I. Burenkov		3
	Differential operators and differential calculus in quantum groups D. P. Zhelobenko		25
	Real algebraic GM$\mathbb Z$-surfaces V. A. Krasnov		51
	An explicit lower bound for a homogeneous rational linear form in logarithms of algebraic numbers E. M. Matveev		81
	The problem of the existence of sufficiently many injective Frechet modules over non-normed Frechet algebras A. Yu. Pirkovskii		137
	Description of the cohomology of Banach algebras and locally convex algebras in the language of $A_\infty$-structures V. A. Smirnov, S. V. Kuznetsova, I. V. Mayorova		155
	The subdifferential and the directional derivatives of the maximum of a family of convex functions V. N. Solov'ev		173
	Extremal interpolation in the mean with overlapping averaging intervals and $L$-splines V. T. Shevaldin		201