Multigraph decomposition into stars and into multistars
نویسندگان
چکیده
We study the decomposition of multigraphs with a constant edge multiplicity into copies of a fixed starH =K1,t :We present necessary and sufficient conditions for such a decomposition to exist where t = 2 and prove NP-completeness of the corresponding decision problem for any t 3.We also prove NP-completeness when the edge multiplicity function is not restricted either on the input G or on the fixed multistar H. © 2005 Published by Elsevier B.V.
منابع مشابه
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ورودعنوان ژورنال:
- Discrete Mathematics
دوره 296 شماره
صفحات -
تاریخ انتشار 2005