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Durham University

Research & business

Research lectures, seminars and events

The events listed in this area are research seminars, workshops and lectures hosted by Durham University departments and research institutes. If you are not a member of the University, but  wish to enquire about attending one of the events please contact the organiser or host department.


 

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Events for 22 October 2020

Jaime Santos: Rigidity of Wasserstein isometries in closed Riemannian manifolds

1:00pm, CM301

Let P2(M) be the space of probability measures on a Riemannian manifold M. Using the solutions to Monge-Kantorovich’s optimal transport problem it is
possible to define a distance on P2(M), the so called L2−Wasserstein distance W2. This distance reflects many geometrical properties of the manifold such as: compactness, geodesics, and non-negative sectional curvature.
In this talk we will discuss some intrinsic properties of Wasserstein spaces, more precisely we give a positive answer to the following question:
If two closed Riemannian manifolds M, N are such that their corresponding Wasserstein spaces P2(M), P2(N) are isometric, does it follow then that M is isometric to N?
Moreover, if we assume that the Riemannian manifold has positive sectional curvature we can also prove that the isometry groups of the manifold M and of the
Wasserstein space P2(M) coincide.

Contact mark.a.powell@durham.ac.uk, andrew.lobb@durham.ac.uk, wilhelm.klingenberg@durham.ac.uk, fernando.galaz-garcia@durham.ac.uk for more information about this event.


Life aquatic: signalling networks mediating flooding stress survival

1:00pm, Via Zoom, Dr Rashmi Sasidharan, Institute of Environmental Biology, Utrecht University, The Netherlands

Contact m.r.knight@durham.ac.uk for more information about this event.


Professor Laura Wright - A Plague Genealogy: Climate Change, Covid, and Animals

4:00pm, Zoom, Professor Laura Wright (Western Carolina University)

Contact cce.admin@durham.ac.uk for more information about this event.