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The asymptotic number of weighted partitions with a given number of parts
The Ramanujan Journal ( IF 0.6 ) Pub Date : 2021-02-15 , DOI: 10.1007/s11139-020-00350-2
Dudley Stark

For a given sequence \(b_k\) of non-negative real numbers, the number of weighted partitions of a positive integer n having m parts \(c_{n,m}\) has bivariate generating function equal to \(\prod _{k=1}^\infty (1-yz^k)^{-b_k}\). Under the assumption that \(b_k\sim Ck^{r-1}\), \(r>0\), and related conditions on the Dirichlet generating function of the weights \(b_k\), we find asymptotics for \(c_{n,m}\) when \(m=m(n)\) satisfies \(m=o\left( n^\frac{r}{r+1}\right) \) and \(\lim _{n\rightarrow \infty }m/\log ^{3+\epsilon }n=\infty \), \(\epsilon >0\).



中文翻译:

具有给定数目的部分的加权分区的渐近数

对于给定的非负实数序列\(b_k \),具有m个部分\(c_ {n,m} \)的正整数n的加权分区数具有等于\(\ prod _的双变量生成函数{k = 1} ^ \ infty(1-yz ^ k)^ {-b_k} \)。假设\(b_k \ sim Ck ^ {r-1} \)\(r> 0 \)以及权重\(b_k \)的Dirichlet生成函数的相关条件,我们找到\(b c_ {n,m} \)\(m = m(n)\)满足\(m = o \ left(n ^ \ frac {r} {r + 1} \ right)\)\(\ lim _ {n \ rightarrow \ infty} m / \ log ^ {3+ \ epsilon} n = \ infty \)\(\ epsilon> 0 \)

更新日期:2021-02-16
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