Title | ||
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A Characterization for the Existence of Connected $f$-Factors of $\textit{ Large}$ Minimum Degree. |
Abstract | ||
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It is well known that when $f(v)$ is a constant for each vertex $v$, the connected $f$-factor problem is NP-Complete. In this note we consider the case when $f(v) \geq \lceil \frac{n}{2.5}\rceil$ for each vertex $v$, where $n$ is the number of vertices. We present a diameter based characterization of graphs having a connected $f$-factor (for such $f$). We show that if a graph $G$ has a connected $f$-factor and an $f$-factor with 2 connected components, then it has a connected $f$-factor of diameter at least 3. This result yields a polynomial time algorithm which first executes the Tutte's $f$-factor algorithm, and if the output has 2 connected components, our algorithm searches for a connected $f$-factor of diameter at least 3. |
Year | Venue | DocType |
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2016 | CoRR | Journal |
Volume | Citations | PageRank |
abs/1601.06291 | 0 | 0.34 |
References | Authors | |
4 | 2 |
Name | Order | Citations | PageRank |
---|---|---|---|
N. S. Narayanaswamy | 1 | 151 | 27.01 |
C. S. Rahul | 2 | 2 | 2.43 |