3 ms·
Subexponential algorithms in general have long had proven running times. Dixon's method [1], in particular, has had a proven running time since 1980. The number
by pbsd 6y ago
Subexponential algorithms in general have long had proven running times. Dixon's method [1], in particular, has had a proven running time since 1980. The number field sieve itself has had some recent progress on that front [2].
However, those algorithms are _probabilistic_, not _deterministic_, which is what sets this linked method apart.
This algorithm, much like Pollard-Strassen before it, is pretty much irrelevant to integer factorization in practice. But it is nevertheless remarkable to see some progress on deterministic factorization after such a long time.
[1] https://doi.org/10.1090/S0025-5718-1981-0595059-1 https://doi.org/10.1090/S0025-5718-1981-0595059-1
[2] https://doi.org/10.1016/j.jnt.2017.10.019 https://doi.org/10.1016/j.jnt.2017.10.019
- Sniffnoy 6y agoI see, thank you for the correction!
- Pet_Ant 6y agoWhy is it irrelevant in practice? Because the probabilistic algorithms are so much better in practice?
- pbsd 6y agoYes. Between Pollard's rho, SQUFOF, ECM, the various sieves, etc, there is essentially no range at which this one performs better.