# Inverting the signature of a path

Lyons, T
Xu, W

22 May 2018

## Journal:

Journal of the European Mathematical Society

## Last Updated:

2021-01-11T15:34:31.46+00:00

10.4171/JEMS/796

## abstract:

to reconstruct any $C^1$ path (at natural parametrization) from its signature.
We also explicitly quantify the distance between the reconstructed path and the
original path in terms of the number of terms in the signature that are used
for the construction and the modulus of continuity of the derivative of the
path. A key ingredient in the construction is the use of a procedure of
symmetrization that separates the behavior of the path at small and large
scales.

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