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1. • CommentRowNumber1.
   • CommentAuthorelif
   • CommentTimeAug 30th 2013
   • PermaLink
   Author: elif
   Format: TextHow can I find more detail information about isoclinism on groups?

   How can I find more detail information about isoclinism on groups?
2. • CommentRowNumber2.
   • CommentAuthorTodd_Trimble
   • CommentTimeAug 30th 2013
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   Author: Todd_Trimble
   Format: MarkdownItexI'd not bumped into this concept before ([WP link](http://en.wikipedia.org/wiki/Isoclinism_of_groups)). But it would be nice to have some n-sights on this.

   I’d not bumped into this concept before (WP link). But it would be nice to have some n-sights on this.

3. • CommentRowNumber3.
   • CommentAuthorDavidRoberts
   • CommentTimeAug 30th 2013
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItexIt does seem very 'crossed-module-y', it could be that two groups are isoclinic if some natural crossed modules (or higher versions) built from them are weakly equivalent. Unfortunately the WP page looks like it should say an isoclinism should be built from a specific map, rather than just existence of some abstract isos with some confusingly written condition.

   It does seem very ’crossed-module-y’, it could be that two groups are isoclinic if some natural crossed modules (or higher versions) built from them are weakly equivalent. Unfortunately the WP page looks like it should say an isoclinism should be built from a specific map, rather than just existence of some abstract isos with some confusingly written condition.

4. • CommentRowNumber4.
   • CommentAuthorTim_Porter
   • CommentTimeAug 30th 2013
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   Author: Tim_Porter
   Format: MarkdownItexThere is some link with the universal commutator relations that come with the tensor square construction of Ronnie, but I am not sure what the actual link is.

   There is some link with the universal commutator relations that come with the tensor square construction of Ronnie, but I am not sure what the actual link is.

5. • CommentRowNumber5.
   • CommentAuthorTim_Porter
   • CommentTimeAug 30th 2013
   • (edited Aug 30th 2013)
   • PermaLink
   Author: Tim_Porter
   Format: MarkdownItexI noticed [this](http://groupprops.subwiki.org/wiki/Category_of_groups_with_homoclinisms) and [this](http://groupprops.subwiki.org/wiki/Category_of_central_extensions_with_homoclinisms_with_a_fixed_quotient_group).

   I noticed this and this.

6. • CommentRowNumber6.
   • CommentAuthorTim_Porter
   • CommentTimeAug 30th 2013
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   Author: Tim_Porter
   Format: MarkdownItex.... and perhaps Urs will be interested in [this](http://openaccess.city.ac.uk/837/1/0209230v1.pdf).

   …. and perhaps Urs will be interested in this.