Skip to main content
Log in

On the determination of convex bodies by projection and girth functions

  • Published:
Results in Mathematics Aims and scope Submit manuscript

Abstract

It is known that (in the sense of Baire category) most n-dimensional convex bodies are uniquely determined, up to translation or reflection, by the i-dimensional volumes of the orthogonal projections on i-planes, provided that i ∈ {2,…, n − 2}. This result is strengthened by showing that small sets of projections are sufficient for such determinations. The proof yields an extension of the result, where volumes are generalized to intrinsic volumes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Bauer, C, Intermediate surface area measures and projection functions of convex bodies. Arch. Math. 64 (1995), 69–74.

    Article  MATH  Google Scholar 

  2. Bonnesen, T. and Fenchel, W., Theorie der konvexen Körper. Springer, Berlin 1934.

    Book  Google Scholar 

  3. Gardner, R.J., Geometric Tomography. (Encyclopedia of Mathematics and its Applications, vol. 58), Cambridge University Press, Cambridge 1995.

    Google Scholar 

  4. Goodey, P., Schneider, R., Weil, W., On the determination of convex bodies by projection functions. Bull. London Math. Soc. 29 (1997), 82–88.

    Article  MathSciNet  MATH  Google Scholar 

  5. Goodey, P., Schneider, R., Weil, W., Projection functions of convex bodies. In Bolyai Society Math. Studies 6 (Intuitive Geometry, Budapest 1995, eds. I. Bárány and K. Böröczky sen), Budapest 1997, pp. 23 - 53.

    Google Scholar 

  6. Gruber, P.M., Baire categories in convexity. In Handbook of Convex Geometry (eds.P.M. Gruber and J.M. Wills), North-Holland, Amsterdam 1993, pp. 1327–1346.

    Google Scholar 

  7. Schneider, R., On the projections of a convex polytope. Pacific J. Math. 32 (1970), 799–803.

    Article  MathSciNet  MATH  Google Scholar 

  8. Schneider, R., Convex Bodies: the Brunn-Minkowski Theory. (Encyclopedia of Mathematics and its Applications, vol. 44), Cambridge University Press, Cambridge 1993.

    Google Scholar 

  9. Schneider, R., Polytopes and Brunn-Minkowski theory. In Polytopes — Abstract, Convex and Computational (eds. T. Bisztriczky, P. McMullen, R. Schneider and A. Ivić Weiss), NATO ASI Series, vol 40, Kluwer, Dordrecht, 1994, pp. 273–299.

    Chapter  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Schneider, R. On the determination of convex bodies by projection and girth functions. Results. Math. 33, 155–160 (1998). https://doi.org/10.1007/BF03322079

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03322079

AMS subject classification

Key words

Navigation