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Almost ellipsoidal sections and projections of convex bodies

Published online by Cambridge University Press:  24 October 2008

D. G. Larman
Affiliation:
Department of Mathematics, University College, London
P. Mani
Affiliation:
Department of Math. Institut, Universitaet Bern CH-3000, Bern

Extract

In (1) Dvoretsky proved, using very ingenious methods, that every centrally symmetric convex body of sufficiently high dimension contains a central k-dimensional section which is almost spherical. Here we shall extend this result (Corollary to Theorem 2) to k-dimensional sections through an arbitrary interior point of any convex body.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1975

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References

REFERENCES

(1)Dvoretsky, A. Some results on convex bodies and Banach spaces. Proceedings of the International Symposium on Linear Spaces held at the Hebrew University of Jerusalem (1960), 123160, (Jerusalem 1961).Google Scholar
(2)Dvoretsky, A.Some near-sphericity results. Proc. Symp. Pure Maths. 7 (Convexity) (1963), 203210.CrossRefGoogle Scholar
(3)Straus, E. G.Two comments on Dvoretsky's Sphericity Theorem. Israel Journal of Mathematics 1 (1963), 221223.CrossRefGoogle Scholar
(4)Dorn, C. Spherical and Ellipsoidality Theorems for Convex Bodies.Google Scholar
(5)Figiel, T.Some remarks on Dvoretsky's theorem on almost spherical sections of convex bodies. Colloquium Mathematicum, XXIV (1972), 243252.Google Scholar
(6)John, F.Extremum problems with inequalities as subsidiary conditions. Courant Anniv. Volume (1948), 187204.Google Scholar
(7)Sankowski, A.On Dvoretsky's Theorem on almost spherical sections of convex bodies. Israel J. of Mathematics.Google Scholar