Applying 10-fold cross-validation to Pantheon+ supernova data selects the (2,1) Padé approximation as the optimal form for luminosity distance reconstruction, consistent with prior cosmographic results.
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The optimal Pad\'{e} polynomial for reconstruction of luminosity distance based on 10-fold cross-validation
Applying 10-fold cross-validation to Pantheon+ supernova data selects the (2,1) Padé approximation as the optimal form for luminosity distance reconstruction, consistent with prior cosmographic results.