
The cyclability of a graph is the maximum integer $k$ for which every $k$ vertices lie on a cycle. The algorithmic version of the problem, given a graph $G$ and a non-negative integer $k,$ decide whether the cyclability of $G$ is at least $k,$ is {\sf NP}-hard. We study the parametrized complexity of this problem. We prove that this problem, parameterized by $k,$ is ${\sf co\mbox{-}W[1]}$-hard and that its does not admit a polynomial kernel on planar graphs, unless ${\sf NP}\subseteq{\sf co}\mbox{-}{\sf NP}/{\sf poly}$. On the positive side, we give an {\sf FPT} algorithm for planar graphs that runs in time $2^{2^{O(k^2\log k)}}\cdot n^2$. Our algorithm is based on a series of graph-theoretical results on cyclic linkages in planar graphs.
FOS: Computer and information sciences, Discrete Mathematics (cs.DM), cyclability, [INFO.INFO-DS] Computer Science [cs]/Data Structures and Algorithms [cs.DS], G.2.2, Computational Complexity (cs.CC), [INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM], Computer Science - Computational Complexity, linkages, Computer Science - Data Structures and Algorithms, treewidth, FOS: Mathematics, Mathematics - Combinatorics, Data Structures and Algorithms (cs.DS), Combinatorics (math.CO), 05C10, 05C83, parameterized complexity, Computer Science - Discrete Mathematics
FOS: Computer and information sciences, Discrete Mathematics (cs.DM), cyclability, [INFO.INFO-DS] Computer Science [cs]/Data Structures and Algorithms [cs.DS], G.2.2, Computational Complexity (cs.CC), [INFO.INFO-DM] Computer Science [cs]/Discrete Mathematics [cs.DM], Computer Science - Computational Complexity, linkages, Computer Science - Data Structures and Algorithms, treewidth, FOS: Mathematics, Mathematics - Combinatorics, Data Structures and Algorithms (cs.DS), Combinatorics (math.CO), 05C10, 05C83, parameterized complexity, Computer Science - Discrete Mathematics
| citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 7 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
