On some new simple perfect squared squares

C.J. Bouwkamp

    Research output: Contribution to journalArticleAcademicpeer-review

    6 Citations (Scopus)

    Abstract

    Transformation techniques due to Federico and Willcocks are applied to obtain the first known simple perfect squared square of order 24 from Duijvestijn's computer results for lower order. Similarly, twelve new simple squared squares of order 25 are added to the existing eight found by Federico and Wilson. Our emphasis is on four simple perfect squared squares of order 25 and common reduced side 540. They have 12 elements in common but have pairwise identical elements differently arranged.
    Original languageEnglish
    Pages (from-to)67-75
    Number of pages9
    JournalDiscrete Mathematics
    Volume106-107
    Issue number1
    DOIs
    Publication statusPublished - 1992

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