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This article is cited in 1 scientific paper (total in 1 paper)
Discrete mathematics and mathematical cybernetics
Greedy cycles in the star graphs
D. A. Gostevskya, E. V. Konstantinovabc a St Petersburg Academic University,
st. Khlopina, 8/3,
194021, St Petersburg, Russia
b Sobolev Institute of Mathematics,
pr. Koptyuga, 4,
630090, Novosibirsk, Russia
c Novosibirsk State University,
st. Pirogova, 2,
630090, Novosibirsk, Russia
Abstract:
We apply the greedy approach to construct greedy cycles in Star graphs $S_n, n\geqslant 3,$ defined as Cayley graphs on the symmetric group $\mathrm{Sym}_n$ with generating set $t=\{(1\,i),2\leqslant i\leqslant n\}$ of transpositions. We define greedy sequences presented by distinct elements from $t$, and prove that any greedy sequence of length $k$, $2\leqslant k\leqslant n-1$, forms a greedy cycle of length $2\cdot3^{k-1}$. Based on these greedy sequences we give a construction of a maximal set of independent greedy cycles in the Star graphs $S_n$ for any $n\geqslant 3$.
Keywords:
Cayley graph; Star graph; greedy sequence; greedy cycle.
Received October 10, 2017, published March 13, 2018
Citation:
D. A. Gostevsky, E. V. Konstantinova, “Greedy cycles in the star graphs”, Sib. Èlektron. Mat. Izv., 15 (2018), 205–213
Linking options:
https://www.mathnet.ru/eng/semr911 https://www.mathnet.ru/eng/semr/v15/p205
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