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    Article

    Existence of Yang Hui Type Magic Squares

    In this paper, some constructions of Yang Hui type magic squares are provided. As their application, it is shown that there exists a Yang Hui type magic square YMS

    Nanyuan Cao, Kejun Chen, Yong Zhang in Graphs and Combinatorics (2015)

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    Article

    Super-simple (5, 4)-GDDs of group type g u

    In statistical planning of experiments, super-simple designs are the ones providing samples with maximum intersection as small as possible. Supersimple group divisible designs are useful in constructing other ...

    Guangzhou Chen, Kejun Chen, Yong Zhang in Frontiers of Mathematics in China (2014)