New update for “Unsolved problems in group theory (Kourovka Notebook)”

“Kourovka Notebook” is a collection of open problems  in Group Theory proposed by more than 300 mathematicians from all over the world. It has been published every 2-4 years since 1965. This is the 18th edition, which contains 120 new problems and a number of comments on about 1000 problems from the previous editions.

This new update for the current 18th edition has been posted 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 in 18upd-e. We thank all the people who help us keeping Kourovka Notebook up to date.

Evgeny Khukhro khukhro@yahoo.co.uk and Victor Mazurov mazurov@math.nsc.ru, Editors