# Closed forms of Zassenhaus formula

@inproceedings{Dupays2021ClosedFO, title={Closed forms of Zassenhaus formula}, author={L. Dupays}, year={2021} }

Zassenhaus formula is used in a wide range of fields in physics or mathematics, from fluid dynamics to differential geometry. The non commutativity of the elements of the algebra implies that the exponential of a sum of operators cannot be splitted in the product of exponential of operators. The exponential of the sum can then be decomposed as the product of the exponentials multiplied by a supplementary term which form is generally an infinite product of exponentials. However, for some special…

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