Abstract
We consider the problem of finding a fundamental cycle basis of minimum total weight in the cycle space associated with an undirected biconnected graph G, where a nonnegative weight is assigned to each edge of G and the total weight of a basis is defined as the sum of the weights of all the cycles in the basis. Although several heuristics have been proposed to tackle this NP-hard problem, which has several interesting applications, nothing is known regarding its approximability. In this paper we show that this problem is MAXSNP-hard and hence does not admit a polynomial-time approximation scheme (PTAS) unless P=NP. We also derive the first upper bounds on the approximability of the problem for arbitrary and dense graphs. In particular, for complete graphs, it is approximable within 4+ε , for any ε >0.
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Galbiati, G., Amaldi, E. (2004). On the Approximability of the Minimum Fundamental Cycle Basis Problem. In: Solis-Oba, R., Jansen, K. (eds) Approximation and Online Algorithms. WAOA 2003. Lecture Notes in Computer Science, vol 2909. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-24592-6_12
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DOI: https://doi.org/10.1007/978-3-540-24592-6_12
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