© 1992 by London Mathematical Society
A Colored Version of Tverberg's Theorem
Department of Operations Research and Cowles Foundation Yale University New Haven Connecticut 06520 USA
Department of Mathematics University College London Gower Street London WC1E 6BT
The main result of this paper is that given r red, r white, and r green points in the plane, it is possible to form r vertex-disjoint triangles
i,...,
r in such a way that
i has one red, one white, and one green vertex for every i = l,...,r and the intersection of these triangles is non-empty.
On leave from: Mathematical Institute Hungarian Academy of Sciences PO Box 127 1364 Budapest Hungary