Call for new problems and update for Kourovka Notebook
The preparation of the new 19th edition of the “Kourovka Notebook” in underway. Everybody is welcome to propose new problems to be included in the new edition. Problems may “belong” to those who propose them, or otherwise. In the latter case, one can indicate the author(s) of the problem (if different from the person proposing), or simply that this is a “well-known problem”. In order that the progress could be “measured” and seen, the preference is usually given to concrete questions that admit “yes” or “no” answers.
We also welcome any other comments on or/and solutions of existing problems.
A new update for the current 18th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” has been posted. All the changes (a few new and old solutions, corrections, new references, etc.) are incorporated in the new version of the main PDF file at http://arxiv.org/abs/1401.0300 . In addition, for convenience of the readers, all the changes made since the 18th edition first appeared are also listed separately here.