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Triquetras and Porisms

by Dana N. Mackenzie

Award: George Pólya

Year of Award: 1993

Publication Information: The College Mathematics Journal, Vol. 23, No. 2, (1992), pp. 118-131

Summary: Theorems involving the mathematics of triquetras; three equal interlaced arcs.

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About the Author: (from The College Mathematics Journal, Vol. 23, No. 2, (1992)) Dana N. Mackenzie graduated from Swarthmore College with highest honors in 1979 and received his Ph.D. from Princeton University in 1983, under his former name, Dana Nance. He taught for six years at Duke University, and since 1989 has been an Assistant Professor of Mathematics at Kenyon College. His specialty is minimal surfaces; for example, he and Gary Lawlor completely solved the problem of determining when two intersecting n-planes minimize area (the Angle Criterion). He was the North Carolina chess champion in 1985 and 1987.


Subject classification(s): Geometry and Topology | Plane Geometry
Publication Date: 
Sunday, July 20, 2008