[Settfa] Settfa Digest, Vol 79, Issue 1

[Dario darji]

Interesting talk! Wish I was there for it!

Best,
dario
On Oct 7, 2025 at 06:00 -0400, settfa-request at math.cas.cz, wrote:

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> Today's Topics:
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> 1. *Tomorrow* Tuesday 7 Oct, Peter J. Cameron
> (David Bradley-Williams)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 06 Oct 2025 15:20:36 +0200
> From: David Bradley-Williams <williams at math.cas.cz>
> To: settfa at math.cas.cz
> Cc: Peter Cameron <pjc20 at st-andrews.ac.uk>
> Subject: [Settfa] *Tomorrow* Tuesday 7 Oct, Peter J. Cameron
> Message-ID: <047678359cc3415eb86c707c42f81662 at math.cas.cz>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Tuesday, 7 October 2025 - 10:00 to 11:30
> Place: IM, kon?rna
>
> Speaker: Peter J. Cameron, University of St Andrews
> Title: Graphs (and simplicial complexes) defined on groups
>
> Abstract
>
> My subject is graphs whose vertex set is a group and whose edges are
> defined in terms of the group operation, so that the graph is invariant
> under all automorphisms of the group. The classical example is the
> commuting graph of a group, defined by Brauer and Fowler in a seminal
> paper in 1955.
>
> There has been a lot of work on this topic recently. My interests are
> mainly in how the theories of groups and graphs can help one another.
> Some of the questions I will address are
>
> - finding new results about groups;
> - characterising important classes of groups using graphs;
> - recognising graphs obtained from groups and, if possible,
> reconstructing the groups;
> - finding some beautiful graphs.
>
> Recently I have widened the investigation to simplicial complexes
> defined on groups; I will present a small amount of new material and
> some open problems on this also.
>
> For more information see the seminar web page at
> https://www.math.cas.cz/index.php/events/seminar/6
>
>
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> End of Settfa Digest, Vol 79, Issue 1
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