The Fifteen Schoolgirls
Dick Tahta
Broschiertes Buch

The Fifteen Schoolgirls

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A famous problem found in books on mathematical recreations was first proposed in an annual in 1850 by a vicar and amateur mathematician, Thomas Kirkman. Fifteen schoolgirls walk out three abreast for seven days and it was required to arrange each day's walk so that any pair of girls were only once in the same row during the week. The puzzle arose from Kirkman's work on a more general mathematical problem which he was to explore in a number of published articles over the next few years. Much of his work was ignored at the time, but it involved various combinatorial ideas that have now become o...