Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-25T14:44:52.116Z Has data issue: false hasContentIssue false

The Busemann–Petty problem in the complex hyperbolic space

Published online by Cambridge University Press:  12 February 2013

SUSANNA DANN*
Affiliation:
Department of Mathematics, University of Missouri, Columbia, MO 65211, U.S.A. e-mail: [email protected]

Abstract

The Busemann–Petty problem asks whether origin-symmetric convex bodies in ℝn with smaller central hyperplane sections necessarily have smaller volume. The answer is affirmative if n ≤ 4 and negative if n ≥ 5. We study this problem in the complex hyperbolic n-space ℍn and prove that the answer is affirmative for n ≤ 2 and negative for n ≥ 3.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Abardia, J. and Bernig, A.Projection bodies in complex vector spaces. Adv. Math. 227 2 (2011), 830846.CrossRefGoogle Scholar
[2]Abardia, J. and Gallego, E. Convexity on complex hyperbolic space. arXiv:1003. 4667.Google Scholar
[3]Ball, K.Some remarks on the geometry of convex sets. In Geometric aspects of functional analysis (1986/87). Lecture Notes in Math. vol. 1317 (Springer, Berlin, 1988), pp. 224231.Google Scholar
[4]Bezdek, K. and Schneider, R.Covering large balls with convex sets in spherical space. Beiträge Algebra Geom. 51 1 (2010), 229235.Google Scholar
[5]Bourgain, J.On the Busemann–Petty problem for perturbations of the ball. Geom. Funct. Anal. 1 1 (1991), 113.CrossRefGoogle Scholar
[6]Bourgain, J. and Zhang, G.On a generalization of the Busemann–Petty problem. In Convex geometric analysis (Berkeley, CA, 1996), Math. Sci. Res. Inst. Publ. vol. 34 (Cambridge University Press, Cambridge, 1999), pp. 6576.Google Scholar
[7]Busemann, H. and Petty, C. M.Problems on convex bodies. Math. Scand. 4 (1956), 8894.CrossRefGoogle Scholar
[8]Gao, F., Hug, D. and Schneider, R.Intrinsic volumes and polar sets in spherical space. Math. Notae. 41 (2001/02), 159176 (2003). Homage to Luis Santaló. vol. 1 (Spanish).Google Scholar
[9]Gardner, R. J.Intersection bodies and the Busemann–Petty problem. Trans. Amer. Math. Soc. 342 1 (1994), 435445.CrossRefGoogle Scholar
[10]Gardner, R. J.A positive answer to the Busemann-Petty problem in three dimensions. Ann. of Math. (2) 140 2 (1994), 435447.CrossRefGoogle Scholar
[11]Gardner, R. J.The Brunn–Minkowski inequality. Bull. Amer. Math. Soc. (N.S.) 39 3 (2002), 355405.CrossRefGoogle Scholar
[12]Gardner, R. J., Koldobsky, A. and Schlumprecht, T.An analytic solution to the Busemann–Petty problem on sections of convex bodies. Ann. of Math. (2) 149 2 (1999), 691703.CrossRefGoogle Scholar
[13]Gel′fand, I. M. and Shilov, G. E.Generalized functions. Vol. 1. (Academic Press [Harcourt Brace Jovanovich Publishers], New York, 1964 [1977]). Properties and operations, Translated from the Russian by Eugene Saletan.Google Scholar
[14]Giannopoulos, A. A.A note on a problem of H. Busemann and C. M. Petty concerning sections of symmetric convex bodies. Mathematika 37 2 (1990), 239244.CrossRefGoogle Scholar
[15]Goldman, W. M.Complex hyperbolic geometry. Oxford Mathematical Monographs. (The Clarendon Press Oxford University Press, New York, 1999). Oxford Science Publications.Google Scholar
[16]Koldobsky, A.An application of the Fourier transform to sections of star bodies. Israel J. Math. 106 (1998), 157164.CrossRefGoogle Scholar
[17]Koldobsky, A.Intersection bodies, positive definite distributions, and the Busemann–Petty problem. Amer. J. Math. 120 4 (1998), 827840.CrossRefGoogle Scholar
[18]Koldobsky, A.A generalization of the Busemann–Petty problem on sections of convex bodies. Israel J. Math. 110 (1999), 7591.CrossRefGoogle Scholar
[19]Koldobsky, A.A functional analytic approach to intersection bodies. Geom. Funct. Anal. 10 6 (2000), 15071526.CrossRefGoogle Scholar
[20]Koldobsky, A.On the derivatives of X-ray functions. Arch. Math. (Basel) 79 3 (2002), 216222.CrossRefGoogle Scholar
[21]Koldobsky, A.The Busemann-Petty problem via spherical harmonics. Adv. Math. 177 1 (2003), 105114.CrossRefGoogle Scholar
[22]Koldobsky, A.Fourier Analysis in Convex Geometry. Math. Surv. Monogr. vol. 116 (American Mathematical Society, Providence, RI, 2005).Google Scholar
[23]Koldobsky, A.Stability of volume comparison for complex convex bodies. Arch. Math. (Basel) 97 1 (2011), 9198.CrossRefGoogle Scholar
[24]Koldobsky, A., König, H. and Zymonopoulou, M.The complex Busemann–Petty problem on sections of convex bodies. Adv. Math. 218 2 (2008), 352367.CrossRefGoogle Scholar
[25]Koldobsky, A., Paouris, G. and Zymonopoulou, M. Complex intersection bodies. preprint.Google Scholar
[26]Koldobsky, A., Yaskin, V. and Yaskina, M.Modified Busemann–Petty problem on sections of convex bodies. Israel J. Math. 154 (2006), 191207.CrossRefGoogle Scholar
[27]Larman, D. G. and Rogers, C. A.The existence of a centrally symmetric convex body with central sections that are unexpectedly small. Mathematika 22 2 (1975), 164175.CrossRefGoogle Scholar
[28]Lutwak, E.Intersection bodies and dual mixed volumes. Adv. in Math. 71 2 (1988), 232261.CrossRefGoogle Scholar
[29]Papadimitrakis, M.On the Busemann–Petty problem about convex, centrally symmetric bodies in R n. Mathematika. 39 2 (1992), 258266.CrossRefGoogle Scholar
[30]Rubin, B.Comparison of volumes of convex bodies in real, complex, and quaternionic spaces. Adv. Math. 225 3 (2010), 14611498.CrossRefGoogle Scholar
[31]Schneider, R.Convex bodies: the Brunn-Minkowski theory. Encyclopedia Math. Appl. vol. 44 (Cambridge University Press, 1993).CrossRefGoogle Scholar
[32]Thorpe, J. A.Elementary Topics in Differential Geometry. Undergraduate Texts in Mathematics. (Springer-Verlag, New York, 1979).CrossRefGoogle Scholar
[33]Yaskin, V.The Busemann-Petty problem in hyperbolic and spherical spaces. Adv. Math. 203 2 (2006), 537553.CrossRefGoogle Scholar
[34]Zhang, G. Y.Intersection bodies and the Busemann–Petty inequalities in R4. Ann. of Math. (2) 140 2 (1994), 331346.CrossRefGoogle Scholar
[35]Zhang, G. Y.A positive solution to the Busemann–Petty problem in R4. Ann. of Math. (2) 149 2 (1999), 535543.CrossRefGoogle Scholar
[36]Zvavitch, A.The Busemann–Petty problem for arbitrary measures. Math. Ann. 331 4 (2005), 867887.CrossRefGoogle Scholar
[37]Zymonopoulou, M.The complex Busemann–Petty problem for arbitrary measures. Arch. Math. (Basel) 91 5 (2008), 436449.CrossRefGoogle Scholar
[38]Zymonopoulou, M.The modified complex Busemann-Petty problem on sections of convex bodies. Positivity 13 4 (2009), 717733.CrossRefGoogle Scholar