Mat. Zametki, 1997, Volume 61, Issue 2

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1997, Volume 61, Issue 2

	On the algebraic geometry of $S$-duality B. V. Karpov	163
	Exact smooth classification of hamiltonian vector fields on two-dimensional manifolds B. S. Kruglikov	179
	Integral representations of functions and embeddings of Sobolev spaces on cuspidal domains D. A. Labutin	201
	Normal forms of Poisson structures O. V. Lychagina	220
	Extension of functions preserving the modulus of continuity V. A. Milman	236
	Frucht theorem for inverse semigroups N. A. Nemirovskaya	246
	The Euler problem in solid body dynamics and the Jacobi problem about geodesics on an ellipsoid are not topologically conjugate O. E. Orel	252
	Modified realizability and predicate logic V. E. Plisko	259
	Summation rational operators of the Jackson type E. A. Rovba	270
	Saddle-point method and resurgent analysis B. Yu. Sternin, V. E. Shatalov	278
	Efficiency of numerical integration algorithms related to divisor theory in cyclotomic fields N. Temirgaliev	297

Brief Communications
	On the measure of linear and algebraic independence for values of entire hypergeometric functions W. V. Zudilin	302
	Some remarks on variational principles A. D. Ioffe, V. M. Tikhomirov	305
	A generalization of the Euler–Maclaurin formula R. M. Trigub	312
	Integral manifolds of nonautonomous evolution differential equations A. B. Shapoval	317