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Collineations of Affine Moulton Planes

Published online by Cambridge University Press:  20 November 2018

William A. Pierce*
Affiliation:
Syracuse University Syracuse 10, New York, and West Virginia University Morgantown, West Virginia
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In a recent article on Moulton planes (8), I have generalized the non-Desarguesian planes introduced by F. R. Moulton (6) and Pickert (7, pp. 93-94). Let F = (0, 1; a, b, . . . , x, y, . . .} denote a given field, having P as a multiplicative subgroup of index 2. Define x > 0 or x < 0 according as x lies in P or in the other coset of non-zero elements. The function ϕ is order-preserving, and can be assumed to satisfy ϕ(0) = 0, ϕ(1) = 1. For any n < 0, the maps x —> ϕ(x) and x —> ϕ(x) — nx both carry F onto itself. The elements of F form a Cartesian group, {+,0} being defined so that

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1964

References

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