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dc.contributor.authorÁlvarez Faura, M. del Carme
dc.contributor.authorDíaz Cort, Josep
dc.contributor.authorSerna Iglesias, María José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciències de la Computació
dc.identifier.citationAlvarez, C., Diaz, J., Serna, M. "Intervalizing colored graphs is NP-complete for caterpilars with hair length 2". 1998.
dc.description.abstractThe problem of Intervalizing Colored Graphs has received a lot of attention due to their use as a model for DNA physical mapping with ambiguous data. If k is the number of colors, the problem is known to be NP-Complete for general graphs for kgeq 4 and has polynomial time algorithms for k=2 and k=3. In this paper we prove that the problem is NP-Complete for caterpillars with hairs of length at most 2. In the positive side we give polynomial time algorithms for the problem in the cases, caterpillars with hairs of length at most 1 and any number of colors and caterpillars with hairs of length at most 2 and a constant number of colors. It is the first time a problem has been shown NP-complete for the particular case of caterpillars of hairs of length at most 2.
dc.format.extent17 p.
dc.subjectÀrees temàtiques de la UPC::Informàtica::Informàtica teòrica
dc.subject.otherColored graphs intervalizing
dc.titleIntervalizing colored graphs is NP-complete for caterpilars with hair length 2
dc.typeExternal research report
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorAlvarez, C.; Diaz, J.; Serna, M.

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