An application of Pólya’s enumeration theorem to partitions of subsets of positive integers

Xiao Jun Wu; Chong-Yun Chao

Czechoslovak Mathematical Journal (2005)

  • Volume: 55, Issue: 3, page 611-623
  • ISSN: 0011-4642

Abstract

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Let S be a non-empty subset of positive integers. A partition of a positive integer n into S is a finite nondecreasing sequence of positive integers a 1 , a 2 , , a r in S with repetitions allowed such that i = 1 r a i = n . Here we apply Pólya’s enumeration theorem to find the number ( n ; S ) of partitions of n into S , and the number D P ( n ; S ) of distinct partitions of n into S . We also present recursive formulas for computing ( n ; S ) and D P ( n ; S ) .

How to cite

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Wu, Xiao Jun, and Chao, Chong-Yun. "An application of Pólya’s enumeration theorem to partitions of subsets of positive integers." Czechoslovak Mathematical Journal 55.3 (2005): 611-623. <http://eudml.org/doc/30972>.

@article{Wu2005,
abstract = {Let $S$ be a non-empty subset of positive integers. A partition of a positive integer $n$ into $S$ is a finite nondecreasing sequence of positive integers $a_1, a_2, \dots , a_r$ in $S$ with repetitions allowed such that $\sum ^r_\{i=1\} a_i = n$. Here we apply Pólya’s enumeration theorem to find the number $¶(n;S)$ of partitions of $n$ into $S$, and the number $\{\mathrm \{D\}P\}(n;S)$ of distinct partitions of $n$ into $S$. We also present recursive formulas for computing $¶(n;S)$ and $\{\mathrm \{D\}P\}(n;S)$.},
author = {Wu, Xiao Jun, Chao, Chong-Yun},
journal = {Czechoslovak Mathematical Journal},
keywords = {Pólya’s enumeration theorem; partitions of a positive integer into a non-empty subset of positive integers; distinct partitions of a positive integer into a non-empty subset of positive integers; recursive formulas and algorithms},
language = {eng},
number = {3},
pages = {611-623},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {An application of Pólya’s enumeration theorem to partitions of subsets of positive integers},
url = {http://eudml.org/doc/30972},
volume = {55},
year = {2005},
}

TY - JOUR
AU - Wu, Xiao Jun
AU - Chao, Chong-Yun
TI - An application of Pólya’s enumeration theorem to partitions of subsets of positive integers
JO - Czechoslovak Mathematical Journal
PY - 2005
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 55
IS - 3
SP - 611
EP - 623
AB - Let $S$ be a non-empty subset of positive integers. A partition of a positive integer $n$ into $S$ is a finite nondecreasing sequence of positive integers $a_1, a_2, \dots , a_r$ in $S$ with repetitions allowed such that $\sum ^r_{i=1} a_i = n$. Here we apply Pólya’s enumeration theorem to find the number $¶(n;S)$ of partitions of $n$ into $S$, and the number ${\mathrm {D}P}(n;S)$ of distinct partitions of $n$ into $S$. We also present recursive formulas for computing $¶(n;S)$ and ${\mathrm {D}P}(n;S)$.
LA - eng
KW - Pólya’s enumeration theorem; partitions of a positive integer into a non-empty subset of positive integers; distinct partitions of a positive integer into a non-empty subset of positive integers; recursive formulas and algorithms
UR - http://eudml.org/doc/30972
ER -

References

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  1. The Theory of Partitions, Addison-Wesley, Reading, 1976. (1976) Zbl0371.10001MR0557013
  2. Pólya’s theory of counting, Appl. Combin. Math., E. F. Beckenbach (ed.), Wiley, New York, 1964, pp. 144–184. (1964) Zbl0144.00601
  3. 10.1016/0097-3165(90)90056-3, J.  Combin. Theory 53 (1990), 165–182. (1990) MR1041444DOI10.1016/0097-3165(90)90056-3
  4. Graphical Enumeration, Academic Press, New York-London, 1973. (1973) MR0357214
  5. 10.1090/S0025-5718-1970-0277401-7, Math. Comp. 24 (1970), 955–961. (1970) Zbl0217.03402MR0277401DOI10.1090/S0025-5718-1970-0277401-7
  6. 10.1007/BF02546665, Acta Math. 68 (1937), 145–254. (1937) DOI10.1007/BF02546665
  7. Combinatorial Enumeration of Groups, Graphs and Chemical Compounds, Springer-Verlag, New York, 1987. (1987) MR0884155

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