On the Number of Slopes of the Graph of
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A. Blokhuis; S. Ball; A.E. Brouwer; L. Storme; T. SzΕnyi
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Article
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1999
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Elsevier Science
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English
β 116 KB
Given a set U of size q in an affine plane of order q, we determine the possibilities for the number of directions of secants of U, and in many cases characterize the sets U with given number of secant directions.