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Timeline for Closed paths, traces and spectra

Current License: CC BY-SA 4.0

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Jun 22, 2020 at 18:12 answer added Michael Magee timeline score: 4
Jun 22, 2020 at 13:31 comment added Abdelmalek Abdesselam Did you try the decomposition into Lyndon words used for understanding the graph zeta function. See for example the article "A Combinatorial Proof of Bass's Evaluations of the Ihara-Selberg Zeta Function for Graphs" by Foata and Zeilberger ams.org/journals/tran/1999-351-06/S0002-9947-99-02234-5
Jun 22, 2020 at 11:44 comment added H A Helfgott I'm not sure of quite what you have in mind.
Jun 22, 2020 at 8:13 comment added Hailong Dao But then 6 can be broken in a finite number of ways $6=4+1+1=3+3=2+2+2=...$ and each decomposition can be bounded by $N^a$ where $N$ is the number of paths at most $6$ and $a$ is the number of summands, can't we get at least some function of $N$ as upper bound?
Jun 22, 2020 at 8:01 comment added H A Helfgott That would be the naïve expectation, but I don't see how that happens.
Jun 22, 2020 at 7:54 comment added Hailong Dao Since a closed walk can be broken down to a number of closed paths (for instance a closed walk of length 6 can be 2 closed paths of length 3), don't you get an upper bound for number of walks from the number of paths?
Jun 22, 2020 at 7:32 history edited H A Helfgott CC BY-SA 4.0
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Jun 22, 2020 at 7:25 history asked H A Helfgott CC BY-SA 4.0