Zap. Nauchn. Sem. POMI, 2001, Volume 279

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JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

2001, Volume 279

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General information

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Contents

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Geometry and topology. Part 6

	Aleksandr Aleksandrovich Ivanov (on the occasion of his eightieth birthday) S. V. Buyalo, V. A. Zalgaller, I. A. Ibragimov, N. A. Shanin		7
	A higher-order analog of the helicity number for a pair of divergent-free vector fields P. M. Akhmet'ev		15
	Metrized semigroups V. N. Berestovskii, V. M. Gichev		24
	Infinitesimal classification of systems of two PDE of first order S. V. Duzhin		61
	On a paper by Barden A. V. Zhubr		70
	Metric axioms of Euclidean space A. A. Ivanov		89
	Planar Manhattan local minimal and critical networks A. O. Ivanov, V. L. Hong, A. A. Tuzhilin		111
	Totally geodesic subsets in the variety of directions of physical space D. V. Ivanov		141
	Symmetric sextics and auxiliary conics V. S. Itenberg, I. V. Itenberg		154
	Universal boundary sets in the generalized Steiner problem G. A. Karpunin		168
	On inscribing a regular octahedron in a three-dimensional convex body with smooth boundary V. V. Makeev		183
	Equipartition of a mass continuously distributed on a sphere or in space V. V. Makeev		187
	Fast algorithms for identification and comparison of braids A. V. Malyutin		197
	Geometrisation of the mapping tori of Dehn twists on an infinite genus surfase P. V. Svetlov		218
	The Reidemeister number of any automorphism of a Gromov hyperbolic group is infinite A. L. Fel'shtyn		229
	An integral formula for the complex intersection number of real cycles in a real algebraic variety with topologically rational singularities S. M. Finashin		241

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