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arXiv · 1702.04681

Explicit Description of the Zassenhaus Formula

Tetsuji Kimura
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Abstract

We explicitly describe an expansion of $e^{A+B}$ as an infinite sum of the products of $B$ multiplied by the exponential function of $A$. This is the explicit description of the Zassenhaus formula. We also express the Baker-Campbell-Hausdorff formula in a different manner.

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Tetsuji Kimura. 2017-04-06. Explicit Description of the Zassenhaus Formula. https://doi.org/10.1093/ptep%2Fptx044

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