EVENT: Groups and Combinatorics Seminar:Symmetric designs and their automorphism groups
|
|
Groups and Combinatorics Seminar:Symmetric designs and their automorphism groups |
Other events...
|
Speaker: Seyed Hassan Alavi (Bu-Ali Sina University)
Time and place: 16:00 Friday 24/03/2017 in Weatherburn LT
Title: Symmetric designs and their automorphism groups
Abstract: A symmetric design (v,k,λ) is an incidence structure
consisting of a set of v points and a set of v blocks with an
incidence relation such that every block is incident with exactly k
points, and every pair of points is incident with exactly λ blocks. An
automorphism group of a symmetric design is a group of permutations on
points of the design which maps blocks to blocks and preserves the
incidence and non-incidence relations. An automorphism group of a
design naturally acts on the elements of the design, namely, points,
blocks and flags. The main part of this talk is devoted to giving a
survey on recent study of symmetric designs which admit a group of
automorphism acting primitively (resp. transitively) on the set of
points (resp. blocks). We in addition give a list of possible
parameters of designs admitting a flag-transitive and point-primitive
almost simple automorphism group with socle a finite exceptional
simple group.
Contact |
Stephen Glasby
<[email protected]>
|
Start |
Fri, 24 Mar 2017 16:00
|
End |
Fri, 24 Mar 2017 17:00
|
Submitted by |
Stephen Glasby <[email protected]>
|
Last Updated |
Mon, 20 Mar 2017 14:58
|
Included in the following Calendars: |
|
- Locations of venues on the Crawley and Nedlands campuses are
available via the Campus Maps website.
- Download this event as:
Text |
iCalendar
-
Mail this event:
|