Minimum degree ensuring that a hypergraph is hamiltonian-connected
Minimum degree ensuring that a hypergraph is hamiltonian-connected
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确保超图是哈密顿连通的最小度
DOI:
10.1016/j.ejc.2023.103782
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发表时间:
2023
影响因子:
1
通讯作者:
McCourt, Grace
中科院分区:
文献类型:
--
作者:
Kostochka, Alexandr;Luo, Ruth;McCourt, Grace
A hypergraph H is hamiltonian-connected if for any distinct vertices x and y, H contains a hamiltonian Berge path from x to y. We find for all 3≤ r< n, exact lower bounds on minimum degree δ (n, r) of an n-vertex r-uniform hypergraph H guaranteeing that H is hamiltonian-connected. It turns out that for 3≤ n/2< r< n, δ (n, r) is 1 less than the degree bound guaranteeing the existence of a hamiltonian Berge cycle. Moreover, unlike for graphs, for each r≥ 3 there exists an r-uniform hypergraph that is hamiltonian-connected but does not contain a hamiltonian Berge cycle.
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DOI:
10.1016/s0021-9800(70)80037-0
发表时间:
1970
期刊:
Journal of Combinatorial Theory, Series A
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DOI:
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DOI:
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发表时间:
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期刊:
Electron. Notes Discret. Math.
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作者:
Dennis Clemens;Julia Ehrenmüller;Y. Person
通讯作者:
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