Recent content by choschech

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    F4 algorithm for calculating Groebner bases

    Thanks CoCoA! You have been great help and I feel confident that I can tackle my problems now!
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    F4 algorithm for calculating Groebner bases

    Thank you once more! I finally get an idea about how to use the F4 algorithm. Just to make sure I have understood how to check whether a solution really is a Groebner basis: Do you mean that I could calculate all possible S-polynomials for the elements of the solution and that the Normal...
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    F4 algorithm for calculating Groebner bases

    Dear CoCoA, thanks for your answer! I suppose you are right that the first while loop should be cycled through until F is empty. I rechecked the first part of the example and came to the same conclusions than you! I am somewhat worried about the matrix A_1 though (page 14): One column...
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    F4 algorithm for calculating Groebner bases

    Dear all, I have a question concerning Faugere's improved F4 algorithm. You can find it in the attached file faugere_f4.pdf on page 9. In section 2.6 (page 14) an example is given for how the algorithm works. According to the example the second while-loop in the improved F4 algorithm...
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    Spearman's rho and Kendall's tau

    Thanks, these references have been a great help!
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    Spearman's rho and Kendall's tau

    Hi, does anyone know where to get confidence tables for Spearman's rho and Kendall's tau for up to 50 data pairs? Which distributions are the values in these tables derived from?
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