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arXiv · 2012.08878

Greedy-reduction from Shortest Linear Superstring to Shortest Circular Superstring

Bastien Cazaux·Eric Rivals
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Abstract

A superstring of a set of strings correspond to a string which contains all the other strings as substrings. The problem of finding the Shortest Linear Superstring is a well-know and well-studied problem in stringology. We present here a variant of this problem, the Shortest Circular Superstring problem where the sought superstring is a circular string. We show a strong link between these two problems and prove that the Shortest Circular Superstring problem is NP-complete. Moreover, we propose a new conjecture on the approximation ratio of the Shortest Circular Superstring problem.

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Bastien Cazaux, Eric Rivals. 2020-12-16. Greedy-reduction from Shortest Linear Superstring to Shortest Circular Superstring. https://arxiv.org/abs/2012.08878

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