2003, том 3, номер 3

This issue — as well as the preceding one — is dedicated to Vladimir Igorevich Arnold on the occasion of his 65^th birthday.

	Desingularization algorithms. I. Role of exceptional divisors E. Bierstone, P. D. Mil'man		751–805
	New singularities and perestroikas of fronts of linear waves I. A. Bogaevsky		807–821
	Geometry of Whitney-type formulas Yu. M. Burman, M. Polyak		823–832
	Variational principles for Lie–Poisson and Hamilton–Poincaré equations H. Sendra, J. E. Marsden, S. Pekarskii, T. S. Ratiu		833–867
	An integral generalization of the Gusein-Zade–Natanzon theorem S. V. Chmutov		869–879
	Decomposable skew-symmetric functions S. V. Duzhin		881–888
	Apparent contours and their Legendrian deformations E. Ferrand		889–898
	Cluster algebras and Poisson geometry M. Gekhtman, M. Z. Shapiro, A. D. Vainshtein		899–934
	Defining equations for bifurcations and singularities J. Guckenheimer, Y. Xiang		935–946
	Maximally inflected real rational curves V. M. Kharlamov, F. Sottile		947–987
	Geometry of higher helicities B. A. Khesin		989–1011
	$L$-convex-concave sets in real projective space and $L$-duality A. G. Khovanskii, D. Novikov		1013–1037
	On averaging in two-frequency systems with small Hamiltonian and much smaller non-Hamiltonian perturbations A. I. Neishtadt		1039–1052
	Pseudoholomorphic algebraically unrealizable curves S. Yu. Orevkov, E. I. Shustin		1053–1083
	Degeneration of the Leray spectral sequence for certain geometric quotients C. Peters, J. Steenbrink		1085–1095
	On the topology of singularities of Maxwell sets V. D. Sedykh		1097–1112
	The classical KAM theory at the dawn of the twenty-first century M. B. Sevryuk		1113–1144
	Spaces of Hermitian operators with simple spectra and their finite-order cohomology V. A. Vassiliev		1145–1165
	The center problem for the Abel equation, compositions of functions, and moment conditions Y. Yomdin		1167–1195