Some sufficient conditions for the exist
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Ladislav NebeskΓ½
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Article
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1978
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John Wiley and Sons
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English
β 208 KB
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## Abstract The following theorem is proved: Let __G__ be a graph of even order. Assume that there exists a connected spanning subgraph __F__ of __G__ such that for every set __U__ of four vertices in __G__, if the subgraph of __F__ induced by __U__ is a star, then the subgraph of __G__ induced by