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Practical polynomial factoring in polynomial time


An algorithm was presented in Novocin's thesis to factor polynomials in Q[x]. The key result was to show that the number of LLL switches used during the factorization could be bounded by O(r^3 ) where r is the number of factors mod- ulo a prime. The thesis also claimed that it should be possi- ble to design an implementation which (a) in the worst case is comparable to the best implementations in practice and (b) could outperform existing implementations on a large class of polynomials by requiring less Hensel lifting. The goal of this paper is to verify these claims with an actual implementation.
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ensl-00546114 , version 1 (13-12-2010)


  • HAL Id : ensl-00546114 , version 1


William Hart, Mark van Hoeij, Andrew Novocin. Practical polynomial factoring in polynomial time. 2010. ⟨ensl-00546114⟩
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