Artists
Tom Verhoeff
Assistant Professor Computer Science (retired)
Eindhoven University of Technology
Eindhoven, Netherlands
Statement
Tom Verhoeff got involved in mathematical art through his father, Koos Verhoeff. He wrote extensively about the work of Koos, and inspired by this occasionally makes his own discoveries and designs.
Artworks
This combinatorial poem was designed in 2025 as retirement gift for my colleague Cor Hurkens at Eindhoven University of Technology. Cor worked in the Combinatorial Optimization group, where was a relentless problem solver for 36 years. The poem consists of the twenty-four permutations of the words Dear, Cor, Always, and Busy, (note the capital letters) and closes with a variant of the first permutation (Dear Cor, All the Best). The order of the permutations is such that adjacent permutations differ by a single swap of two adjacent words based on Even's algorithm, as visualized by the colored ribbons that vertically connect equal words.