Notice of Self-Retraction and Replacement: Mathematica Pannonica 2023 https://doi.org/10.1556/314.2023.00020
After publication of the above article, Jonathan David Farley identified serious errors in it, therefore he requested withdrawal of the paper, replacing it with an extensively re-written version, which is linked to this notice.
The authors noted that a case in the proof of Theorem 4.4 has been neglected. Namely, in Case 3b on page 11, it is said that two elements of 𝑀𝑌 (𝑦) are sent to 𝑞1. However, another case is needed for when two elements of 𝑀𝑌 (𝑦) are sent to 𝑞2, but they could not complete the proof in that case. Hence, they have not answered the question posed in the paper.
Co-author, Dominic van der Zypen has agreed to the retraction of their article.
The online version of this retraction notice contains the full text of the retracted article as supplementary material.
This article was retracted on 4 June, 2024
Published online: Sept 25, 2023
Accepted: Sept 6, 2023
