Reduction from OV to Subtree Isomorphism
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FROM: OV TO: Subtree Isomorphism
Description
Implications
assume: OVH
then: for all $d \geq {2}$, target on two rooted unordered trees of size $O(n)$, degree $d$, and height $h \leq {2}\log_d n + O(\log \log n)$ cannot be solved in truly subquadratic $O(n^{2-\epsilon})$ time
Year
2018
Reference
Abboud, A., Backurs, A., Hansen, T. D., Vassilevska Williams, V., & Zamir, O. (2018). Subtree isomorphism revisited. ACM Transactions on Algorithms (TALG), 14(3), 1-23.