October 2021 update for the 19th edition and call for new problems

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  A separate file contains the updates only. All the changes are also incorporated in the new version of the main PDF file Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19.

Recall that we are now preparing the new 20th edition. 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. New problems can be sent to any of the editors by e-mail: Evgeny Khukhro khukhro@yahoo.co.uk or Victor Mazurov mazurov@math.nsc.ru . Later in the year we shall contact all the authors with “galley proofs” to make sure that the questions remain open and accurately stated (this also applies to several new problems that have already been received from various authors over the last years).

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

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN

Call for new problems for the new edition

Dear colleagues,

We begin the preparation of the new 20th edition of the “Kourovka Notebook“, a collection of unsolved problems in Group Theory and related areas.

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.

New problems can be sent to any of the editors (preferably by e-mail):
Evgeny Khukhro khukhro@yahoo.co.uk or Victor Mazurov mazurov@math.nsc.ru .

Later in the year we shall contact all the authors with “galley proofs” to make sure that the questions remain open and accurately stated (this also applies to several new problems that have already been received from various authors over the last years).

Evgeny Khukhro and Victor Mazurov, Editors

June 2021 update for the 19th edition

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  
A separate file contains the updates only. SEE NEWER FILES IN OCTOBER UPDATE
All the changes are also incorporated in the new version of the main PDF file 

Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19. SEE NEWER FILES IN OCTOBER UPDATE

We thank everybody who help us keeping the Kourovka Notebook up to date.
Evgeny Khukhro   khukhro@yahoo.co.uk  and
Victor Mazurov  mazurov@math.nsc.ru 
Editors
************************************

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN

December 2020 update for the 19th edition

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  
A separate file contains the updates only. 
All the changes are also incorporated in the new version of the main PDF file 

Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19.

We thank everybody who help us keeping the Kourovka Notebook up to date.
Evgeny Khukhro   khukhro@yahoo.co.uk  and
Victor Mazurov  mazurov@math.nsc.ru 
Editors
************************************

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN

Kourovka Forum further talks

The online seminars “Kourovka Forum” continue their work; see http://mca.nsu.ru/kourovkaforum/ . 

The next seminar will be held on Thursday, 10 December, at 20:00 Novosibirsk time (=13:00 London time) via ZOOM. Efim Zelmanov (University of California, San Diego) will speak on Growth and complexity functions for basic algebraic structures. The zoom link is https://us02web.zoom.us/j/5578968779

Previous talks, with slides and recorded lectures, can be found at http://mca.nsu.ru/kourovkaforum/scheduleandabstracts/

Recall that this series of seminars is intended to highlight the most promising research directions in group theory and, more generally, algebra, along with other relevant fields of mathematics. Clear formulations of the problems may help young researchers to focus their efforts and give them a higher chance of achieving outstanding mathematical results.

The seminars are held once in two weeks on Thursdays. The starting time of the seminar will vary depending on the preferences of the speaker, taking into account the geography of the audience.

 

Launch of Kourovka Forum

As an additional feature of the Kourovka Notebook, a new series of online seminars “Kourovka Forum” will be launched on 29th of October 2020: http://mca.nsu.ru/kourovkaforum/ . 

The first seminar will be held on Thursday, October 29, at 16:00 Novosibirsk time (=9:00 London time) via ZOOM. The first talk is by Evgeny Khukhro, Some problems about bounding length parameters of finite groups. The zoom link is https://us02web.zoom.us/j/5578968779

This series of seminars is intended to highlight the most promising research directions in group theory and, more generally, algebra, along with other relevant fields of mathematics. Clear formulations of the problems may help young researchers to focus their efforts and give them a higher chance of achieving outstanding mathematical results.

The seminars will be held once in two weeks on Thursdays. The starting time of the seminar will vary depending on the preferences of the speaker, taking into account the geography of the audience.

June 2020 update for the 19th edition

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  
A separate file contains the updates only. 
All the changes are also incorporated in the new version of the main PDF file 

Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19.

We thank everybody who help us keeping the Kourovka Notebook up to date.
Evgeny Khukhro   khukhro@yahoo.co.uk  and
Victor Mazurov  mazurov@math.nsc.ru 
Editors
************************************

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN

December 2019 update for the 19th edition

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  
A separate file contains the updates only. 
All the changes are also incorporated in the new version of the main PDF file 

Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19.

We thank everybody who help us keeping the Kourovka Notebook up to date.
Evgeny Khukhro   khukhro@yahoo.co.uk  and
Victor Mazurov  mazurov@math.nsc.ru 
Editors
************************************

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN

August 2019 update for the 19th edition

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  
A separate file contains the updates only. 
All the changes are also incorporated in the new version of the main PDF file 

Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19.

We thank everybody who help us keeping the Kourovka Notebook up to date.
Evgeny Khukhro   khukhro@yahoo.co.uk  and
Victor Mazurov  mazurov@math.nsc.ru 
Editors
************************************

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN

March 2019 update for the 19th edition

An update for the current 19th edition of “Kourovka Notebook (Unsolved Problems in Group Theory)” is  posted.  
A separate file contains the updates only. 
All the changes are also incorporated in the new version of the main PDF file 

Unsolved Problems in Group Theory. The Kourovka Notebook. No. 19.

We thank everybody who help us keeping the Kourovka Notebook up to date.
Evgeny Khukhro   khukhro@yahoo.co.uk  and
Victor Mazurov  mazurov@math.nsc.ru 
Editors
************************************

This 19th issue contains 111 new problems and a number of comments on about 1000 problems from the previous issues. The section “Archive of Solved Problems” includes all the solved problems from the previous issues that have already been commented on in previous issues, while new solutions are found among unsolved problems in the corresponding sections.

Sponsored by

2logos-Kour-LN