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Ovals, Dualities, and Desargues's Theorem

Published online by Cambridge University Press:  20 November 2018

T. G. Ostrom
T. G. Ostrom*
Affiliation:
Montana State University
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Consider a projective plane with n + 1 points on each line, An oval is a set of n + 1 points, no three of which are collinear.

DEFINITION. (1) A line which contains two points of will be called a secant of .

(2) A line which contains exactly one point of will be called a tangent of or an absolute line.

Type
Research Article
Information
Canadian Journal of Mathematics , Volume 7 , 1955 , pp. 417 - 431
Copyright
Copyright © Canadian Mathematical Society 1955

References

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