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arXiv math/0605551math.COmath-phmath.MP
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锯齿状分区和晶格路径

Jagged partitions and lattice paths

P. Jacob, P. Mathieu

摘要:

给出了$K$ -限制锯齿划分的格路描述。相应的晶格路径只能在偶$x$坐标处具有峰,并且高度的最大值不能大于$K-1$。它的重量是相应锯齿状分区的两倍。证明了在生成函数的水平上的等价性。在$K$限制的锯齿状分区和由以下频率条件限制的分区之间给出双射:$f_{2j-1}$是偶数并且$f_j+f_{j+1}\leq K-1$,其中$f_j$是分区中部分$j$的出现次数.双射之间的路径和这些限制分区和路径和分区之间的连续排名在规定的时间间隔。

英文摘要:

A lattice-path description of $K$-restricted jagged partitions is presented. The corresponding lattice paths can have peaks only at even $x$ coordinate and the maximal value of the height cannot be larger than $K-1$. Its weight is twice that of the corresponding jagged partitions. The equivalence is demonstrated at the level of generating functions. A bijection is given between $K$-restricted jagged partitions and partitions restricted by the following frequencies conditions: $f_{2j-1}$ is even and $f_j+f_{j+1}\leq K-1$, where $f_j$ is the number of occurrences of the part $j$ in the partition. Bijections are given between paths and these restricted partitions and between paths and partitions with successive ranks in a prescribed interval.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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