Publications

      Articles:

  • Tetrahedra with congruent facet pairs [full text],
    The Mathematical Intelligencer, published online: 30 November 2022
  • A probabilistic proof of the spherical excess formula [full text],
    American Mathematical Monthly, 128 (2021), no. 1, 70-72.
  • Volume bounds for shadow covering [full text] [alternate],
    with Christina Chen and Tanya Khovanova,
    Transactions of the American Mathematical Society, 366 (2014), no. 3, 1161-1177.
  • Steiner symmetrization using a finite set of directions [full text] [alternate],
    Advances in Applied Mathematics, 48 (2012), no. 2, 340-353.
  • A countable set of directions is sufficient for Steiner symmetrization [full text] [alternate],
    with Gabriele Bianchi, Erwin Lutwak, Deane Yang, and Gaoyong Zhang,
    Advances in Applied Mathematics, 47 (2011), no. 4, 869-873.
  • On the equality conditions of the Brunn-Minkowski theorem [full text] [alternate],
    Proceedings of the American Mathematical Society, 139 (2011), no. 10, 3719-3726.
  • If you can hide behind it, can you hide inside it? [full text] [alternate],
    Transactions of the American Mathematical Society, 363 (2011), no. 9, 4585-4601.
  • Containment and inscribed simplices [full text] [alternate],
    Indiana University Mathematics Journal, 59 (2010), no. 4, 1231-1244.
  • Covering shadows with a smaller volume [full text] [alternate],
    Advances in Mathematics, 224 (2010), no. 2, 601-619.
  • Angles as probabilities [full text] [alternate],
    with David V. Feldman,
    American Mathematical Monthly, 116 (2009), no. 8, 732-735.
  • Estimation of Euler characteristic from volumetric data [proceedings full text (pdf)],
    with K. Rybnikov, K. Daniels, B. Jones, and V. Durante,
    Proceedings of the Fourth International Symposium on 3D Data Processing,
    Visualization, and Transmission,
    Georgia Institute of Technology, June 18-20, 2008.
  • Bonnesen-type inequalities for surfaces of constant curvature [full text] [alternate],
    Advances in Applied Mathematics, 39 (2007), no. 2, 143-154.
  • Isometry invariant valuations on hyperbolic space [full text] [alternate],
    Discrete and Computational Geometry, 36 (2006), no. 3, 457-477.
  • An error estimate for the isoperimetric deficit [full text] [alternate],
    Illinois Journal of Mathematics, 49 (2005), no. 3, 981-992.
  • An intuitive derivation of Heron’s formula [full text] [alternate],
    American Mathematical Monthly, 111 (2004), no. 8, 709-712.
  • The Minkowski problem for polytopes [full text],
    Advances in Mathematics, 185 (2004), no. 2, 270–288.
  • Continuous and profinite combinatorics [full text],
    with Joseph P. S. Kung,
    in Gian-Carlo Rota on Analysis and Probability,
    edited by Jean Dhombres, Joseph Kung and Norton Starr.
    (Boston: Birkhäuser Verlag, 2003).
  • Free polygon enumeration and the area of an integral polygon [full text],
    Discrete Mathematics, 218 (2000), 109-119.
  • Even valuations on convex bodies [full text],
    Transactions of the American Mathematical Society, 352 (2000), no. 1, 71-93.
  • An Euler relation for valuations on polytopes [full text],
    Advances in Mathematics, 147 (1999), no. 1, 1-34.
  • Kinematic formulas for finite vector spaces [full text],
    Discrete Mathematics, 179 (1998), 121-132.
  • Kinematic formulas for finite lattices [full text],
    Annals of Combinatorics, 1 (1997), no. 4, 353-366.
  • A continuous analogue of Sperner’s theorem [full text],
    with Gian-Carlo Rota,
    Communications on Pure and Applied Mathematics, 50 (1997), no. 3, 205-223.
  • Invariant valuations on star-shaped sets [full text],
    Advances in Mathematics, 125 (1997), no. 1, 95-113.
  • Star valuations and dual mixed volumes [full text],
    Advances in Mathematics, 121 (1996), no. 1, 80-101.
  • A short proof of Hadwiger’s characterization theorem [full text],
    Mathematika, 42 (1995), no. 2, 329-339.
  • Several of my preprints are also available at arXiv.org