1 Correction to: Japan Journal of Industrial and Applied Mathematics https://doi.org/10.1007/s13160-020-00436-w

In the original publication of the article, the “(nonumberling)” text and the equation numbers should be removed from Eqs. (2), (3) and (13). Subsequently, the Eqs. (4) to (12) and (14) to (19) should be renumbered as (2) to (10) and (11) to (16).

The original article has been corrected.

In addition, the reference 12 should read as “Ida, Y., Kinoshita, T.: Hyperbolic symmetrization of heston type difusion. Asia Pac. Finan. Mark. 26, 355–364 (2019)”.