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Stirling number of the fourth kind and lucky partitions of a finite set | ||
Communications in Combinatorics and Optimization | ||
مقاله 4، دوره 6، شماره 2، اسفند 2021، صفحه 211-219 اصل مقاله (370.12 K) | ||
نوع مقاله: Original paper | ||
شناسه دیجیتال (DOI): 10.22049/cco.2020.26895.1158 | ||
نویسندگان | ||
Johan Kok1؛ Joseph Varghese Kureethara* 2 | ||
1Independent Mathematics Researcher, City of Tshwane | ||
2Department of Mathematics, Christ University | ||
چکیده | ||
The concept of Lucky k-polynomials and in particular Lucky χ-polynomials was recently introduced. This paper introduces Stirling number of the fourth kind and Lucky partitions of a finite set in order to determine either the Lucky k- or Lucky χ-polynomial of a graph. The integer partitions influence Stirling partitions of the second kind. | ||
کلیدواژهها | ||
Stirling number of the second kind؛ Stirling number of the fourth kind؛ Lucky partition؛ Bell number | ||
مراجع | ||
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[7] J. Kok, Lucky χ-polynomials of graphs of rrder 5, Malaya J. Mat. 8 (2020), no. 3, 767–774.
[8] J. Kok and J.V. Kureethara, A note on perfect lucky k -colourable graphs, Journal of Mathematics and Computer Science 21 (2020), no. 3, 192–197.
[9] D. Lareau, Triangle read by rows, (11 June 2019), https://oeis.org/A308624.
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[11] E.W. Weisstein, Bell number, MathWorld–A Wolfram Web Resource (2020), https://mathworld.wolfram.com/BellNumber.html. | ||
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