516 research outputs found

    The hamburger theorem

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    We generalize the ham sandwich theorem to d+1d+1 measures in Rd\mathbb{R}^d as follows. Let μ1,μ2,,μd+1\mu_1,\mu_2, \dots, \mu_{d+1} be absolutely continuous finite Borel measures on Rd\mathbb{R}^d. Let ωi=μi(Rd)\omega_i=\mu_i(\mathbb{R}^d) for i[d+1]i\in [d+1], ω=min{ωi;i[d+1]}\omega=\min\{\omega_i; i\in [d+1]\} and assume that j=1d+1ωj=1\sum_{j=1}^{d+1} \omega_j=1. Assume that ωi1/d\omega_i \le 1/d for every i[d+1]i\in[d+1]. Then there exists a hyperplane hh such that each open halfspace HH defined by hh satisfies μi(H)(j=1d+1μj(H))/d\mu_i(H) \le (\sum_{j=1}^{d+1} \mu_j(H))/d for every i[d+1]i \in [d+1] and j=1d+1μj(H)min(1/2,1dω)1/(d+1)\sum_{j=1}^{d+1} \mu_j(H) \ge \min(1/2, 1-d\omega) \ge 1/(d+1). As a consequence we obtain that every (d+1)(d+1)-colored set of ndnd points in Rd\mathbb{R}^d such that no color is used for more than nn points can be partitioned into nn disjoint rainbow (d1)(d-1)-dimensional simplices.Comment: 11 pages, 2 figures; a new proof of Theorem 8, extended concluding remark

    Cutting the same fraction of several measures

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    We study some measure partition problems: Cut the same positive fraction of d+1d+1 measures in Rd\mathbb R^d with a hyperplane or find a convex subset of Rd\mathbb R^d on which d+1d+1 given measures have the same prescribed value. For both problems positive answers are given under some additional assumptions.Comment: 7 pages 2 figure

    The New Hampshire, Vol. 108, No. 27 (May 2, 2019)

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    An independent student produced newspaper from the University of New Hampshire

    Red Honey

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    Red Honey is a collection of conceptual poetry based around the transfeminine body, the traumatized body, and the queer body. It follows transformations, rebirths, and deaths to their ends. Nothing is inevitable. This is a spell book for those who wish to live again

    December 9, 1982

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    The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia
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