Zap. Nauchn. Sem. POMI, 1999, Volume 261

JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

1999, Volume 261

Contents

Geometry and topology. Part 4

	Power invariants of certain point sets Yu. I. Babenko, V. A. Zalgaller		7
	Power invariants of joined coaxial prisms Yu. I. Babenko		31
	On sets with prescribed number of power invariants V. V. Makeev		40
	The geometry of the sphere of the gauges of degree two A. N. Glushakov, S. E. Kozlov		43
	Geodesics on faces of calibrations of degree two A. N. Glushakov, S. E. Kozlov		55
	On the convex hull of several compacta A. V. Evdokimov, V. A. Zalgaller		66
	On the triangle of the least perimeter circumscribed about a convex $n$-gon V. A. Zalgaller, A. L. Iones		76
	Stationary values of sectional curvature in Grassmanian manifolds of bivectors S. E. Kozlov		102
	The geometry of the Lie algebra of the orthogonal group $O(\mathbb R^4)$ S. E. Kozlov, M. Yu. Nikanorova		119
	Asymptotic properties of the Heisenberg group S. A. Krat		125
	The Einstein equations in the absence of matter fields on a 5-manifold with the causal structure V. R. Krym		155
	Inversive invariant of a pair of circles A. I. Kurnosenko		167
	On isometric immersion of closed manifolds of nonnegative curvature N. D. Lebedeva		187
	On one affine-invariant metric on the class of convex plane compacts V. V. Makeev		194
	On common sections with given properties for finite set of convex compacts V. V. Makeev, A. S. Mukhin		198
	On the homology of a perturbation of a complex projective hypersurfaces N. Yu. Netsvetaev		204
	An alternative proof of a weak form of Serre's theorem S. S. Podkorytov		210
	Order of function on the Bruschlinsky group S. S. Podkorytov		222
	Homotopy classification of singular links of type $(1,1,m;3)$ with $m>1$ R. F. Sayakhova		229
	The vector space of the conformal Killing forms on a Riemannian manifold S. E. Stepanov		240