Subtree Isomorphism is in DLOG for Nested Trees

@article{Greenlaw1996SubtreeII,
  title={Subtree Isomorphism is in DLOG for Nested Trees},
  author={Raymond Greenlaw},
  journal={Int. J. Found. Comput. Sci.},
  year={1996},
  volume={7},
  pages={161-168}
}
This research note shows subtree isomorphism is in DLOG, and hence NC 2 , for nested trees. To our knowledge this result provides the rst interesting class of trees for which the problem is in a non-randomized version of NC. We also show that one can determine whether or not an arbitrary tree is a nested tree in DLOG. 

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Subtree Isomorphism is in DSPACE(logn) for Restricted Trees

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  • University of New Hampshire, Technical Report 93…
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Subtree Isomorphism in O(n5=2)

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