Infinitesimal,first order bendings of smooth,convex surfaces of revolution subject to conic,sleeve-like constraints along the boundary |
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Authors: | G M Allaev V I Mikhailovskii |
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Abstract: | We prove that on a closed, smooth, convex surface of revolution , whose poles are not flattening points, there exists only a countable set of parallels n. Each of these parallels cuts surface into two parts so that one of the parts,
, admits nontrivial, infinitesimal bendings in the process of which all the points of its boundary n are displaced on a preassigned, conic sleeve K that is coaxial with the surface. The sequence of such parallels n converges to parallel *, which has the following properties: 1) the tangent cone to surface along * is orthogonal to sleeve K ; 2) surface
, cut off from surface by parallel *, has rigidity of first order in the indicated class of bendings.Translated from Ukrainskii Geometricheskii Sbornik, No. 33, pp. 3–8, 1990. |
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