Abstract
An exact formula that relates standard \(\zeta\) functions and so-called hatted \(\zeta\) (\(\hat{\zeta}\)) functions in all orders of perturbation theory is presented. This formula is based on the Landau–Khalatnikov–Fradkin transformation.
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Notes
We note that the results in [3] also contain multiple \(\zeta\) functions (multi-zeta values), but their analysis is beyond the scope of the present article.
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ACKNOWLEDGMENTS
A.V. Kotikov is grateful to the Organizing Committee of the Session-Conference of Nuclear Physics Section at the Department of Physical Sciences, Russian Academy of Sciences, for the invitation.
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Kotikov, A.V., Teber, S. Landau–Khalatnikov–Fradkin Transformation and Even \(\zeta\) Functions. Phys. Atom. Nuclei 84, 105–107 (2021). https://doi.org/10.1134/S1063778820060198
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DOI: https://doi.org/10.1134/S1063778820060198