SEMINAR: Groups and Combinatorics Seminar: Jesse Lansdown, 4pm Aug 17 in Weatherburn LT
|
|
Groups and Combinatorics Seminar: Jesse Lansdown, 4pm Aug 17 in Weatherburn LT |
Other events...
|
Speaker: Jesse Lansdown (University of Western Australia/RWTH Aachen)
Title: Hemisystems in Finite Geometries
Time and place: 4pm Friday 17 Aug 2018, Weatherburn LT
Abstract:
Given an incidence geometry Γ with elements P called points, and elements
L called lines, an m-ovoid O is a subset of P such that every line is
incident with exactly m elements of O. If m is exactly half the number of
lines on a point, then O is called a hemisystem.
Fr´ed´eric Vanhove showed that the existence of hemisystems in the dual
Hermitian polar space implies the existence of new distance-regular graphs
with classical parameters, so the existence of hemisystems in this case is of
great interest.
In this talk I will define these objects and their geometric settings in
greater detail, explain some of the history, and present some recent new
results.
Contact |
Stephen Glasby
<[email protected]>
|
Start |
Fri, 17 Aug 2018 16:00
|
End |
Fri, 17 Aug 2018 17:00
|
Submitted by |
Stephen Glasby <[email protected]>
|
Last Updated |
Tue, 14 Aug 2018 10:00
|
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:
|