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Ergodic Theory of Group Extensions

Monday 27 to Thursday 30 March 2023

Organiser: Richard Sharp

This event is supported by the London Mathematical Society and will consist of an LMS Midlands Regional Meeting on the afternoon of 27 March, followed by a workshop running 28-30 March and ending at lunch time on 30 March.

Programme for the Regional Meeting (Monday 27 March)

Location: Lecture theatre MS.01, Warwick Mathematics Institute (Zeeman Building)

13:15-13:30 Opening of the LMS Meeting

13:30-14:30 Viveka Erlandsson (University of Bristol) Counting geodesics on surfaces [abstract below]

14:30-14:45 Break

14:45-15:45 Mark Pollicott (University of Warwick) Counting geodesic arcs on surfaces with no conjugate points

15:45-16:15 Tea (Mathematics Institute Common Room)

16:15-17:15 Michael Magee (Durham University) Spectral properties of hyperbolic surfaces

17:15-18:30 Wine reception (Mathematics Institute, "The Street")

The meeting will be followed by a dinner at 19:00 at the Scarman Conference Centre (on the University campus). The cost of the dinner is £45.00 (including wine). It is not necessary to register to attend the Regional Meeting but registration to attend the dinner is required. Please email by 10 March 2023 if you wish to attend the dinner. (For registration for the workshop, see below.)

Travel Funding for Research Students and LMS Members: There are limited funds available to contribute in part to the expenses of members of the London Mathematical Society or research students registered at UK universities to attend the meeting and workshop. Please email Richard Sharp at if you would like to apply for this funding.

Workshop (Tuesday 28 March to Thursday 30 March)

The programme is here and a list of abstracts is here. Lectures on Tuesday 28 March will be in room MS.04 in the Mathematics Institute and lectures on Wednesday 29 and Thursday 30 March will be in room B3.02 in the Mathematics Institute.

Registration to attend the workshop is required. Please use the link on the right of the page to register. The deadline is 28 February 2023. Registration for the workshop is now closed. If you still wish to attend, please email R dot J dot Sharp at warwick dot ac dot uk.

There is a small amount of funding available to support PhD students. (Students supported in this way are likely to be offered accommodation in the University's Maths Houses. Each house has three bedrooms and shared bathroom and kitchen.) If you would like to apply for this support, please email Richard Sharp at (please include a short CV with the name of your supervisor, research topic and any other relevant information). We will consider applications as they are received.

Unfortunately, the MRC cannot arrange accommodation for participants who are not speakers or supported PhD students. A variety of B&B accommodation is available in Coventry, Kenilworth and Leamington Spa.

Abstracts for the Regional Meeting talks

Viveka Erlandsson: Counting geodesics on surfaces

Abstract: Counting closed geodesics on hyperbolic surfaces is a classical and very active area of research. The geometric prime number theorem (first proved by Huber and then generalized by Margulis and others) state that the number of closed geodesics of length bounded by L grow exponentially in L, in fact, is asymptotic to exp(L)/L. There has been many generalizations of this result, among them there is an active theme of counting specific subsets of closed geodesics. In this talk I will survey some of these recent developments.

Aerial photograph of Maths Houses

See also:
Mathematics Research Centre
Mathematical Interdisciplinary Research at Warwick (MIR@W)
Past Events 
Past Symposia 

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Mathematics Research Centre
Zeeman Building
University of Warwick
Coventry CV4 7AL - UK