A note on the fast power series' exponential

Published 17 Mar 2012 in cs.DS | (1203.3883v1)

Abstract: It is shown that the exponential of a complex power series up to order n can be implemented via (23/12+o(1))M(n) binary arithmetic operations over complex field, where M(n) stands for the (smoothed) complexity of multiplication of polynomials of degree <n in FFT-model. Yet, it is shown how to raise a power series to a constant power with the complexity (27/8+o(1))M(n).

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Authors (1)

Igor S. Sergeev

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