On n-stars in colorings and orientations of graphs
An n-star S in a graph G is the union of geodesic intervals I1,…,Ik with common end O such that the subgraphs I1∖{O},…,Ik∖{O} are pairwise disjoint and l(I1)+…+l(Ik)=n. If the edges of G are oriented, S is directed if each ray Ii is directed. For natural number n,r, we construct a graph G of diam(G)...
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Datum: | 2016 |
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Format: | Artikel |
Sprache: | English |
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Інститут прикладної математики і механіки НАН України
2016
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Schriftenreihe: | Algebra and Discrete Mathematics |
Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/155731 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Zitieren: | On n-stars in colorings and orientations of graphs / I.V. Protasov // Algebra and Discrete Mathematics. — 2016. — Vol. 22, № 2. — С. 301-303. — Бібліогр.: 3 назв. — англ. |