Partially 2-colored permutations and the Boros–Moll polynomials
Partially 2-colored permutations and the Boros–Moll polynomials
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DOI:
10.1007/s11139-011-9359-1
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发表时间:
2010-08
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影响因子:
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通讯作者:
William Y. C. Chen;Sabrina X. M. Pang;Ellen X. Y. Qu
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文献类型:
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作者:
William Y. C. Chen;Sabrina X. M. Pang;Ellen X. Y. Qu
We find a combinatorial setting for the coefficients of the Boros–Moll polynomialsPm(a) in terms of partially 2-colored permutations. Using this model, we give a combinatorial proof of a recurrence relation on the coefficients ofPm(a). This approach enables us to give a combinatorial interpretation of the log-concavity ofPm(a) which was conjectured by Moll and confirmed by Kauers and Paule.