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- Tony Hammond, Timo Hannay, Ben Lund, Joanna Scott
- D-Lib Magazine
- 2005

- Ben Lund, Tony Hammond, Timo Hannay, Martin Flack
- D-Lib Magazine
- 2005

- Yuri Niyazov, Carl Vogel, +6 authors Max Shron
- PloS one
- 2016

Using matching and regression analyses, we measure the difference in citations between articles posted to Academia.edu and other articles from similar journals, controlling for field, impact factor, and other variables. Based on a sample size of 31,216 papers, we find that a paper in a median impact factor journal uploaded to Academia.edu receives 16% more… (More)

- Tony Hammond, Timo Hannay, Ben Lund
- D-Lib Magazine
- 2004

- Ben Lund
- Electr. J. Comb.
- 2016

We show that, for a finite set A of real numbers, the size of the set A + A A + A = a + b c + d : a, b, c, d ∈ A, c + d = 0 is bounded from below by

- Brandon Hanson, Ben Lund, Oliver Roche-Newton
- Finite Fields and Their Applications
- 2016

- Ben Lund, Shubhangi Saraf
- SIAM J. Discrete Math.
- 2016

- Ben Lund, Adam Sheffer, Frank de Zeeuw
- Discrete & Computational Geometry
- 2015

We define the bisector energy E(P) of a set P in R 2 to be the number of quadruples (a, b, c, d) ∈ P 4 such that a, b determine the same perpendicular bisector as c, d. Equivalently, E(P) is the number of isosceles trapezoids determined by P. We prove that if no line or circle contains M (n) points of an n-point set P, then for any ε > 0 we have

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