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Research

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 26 October 2017

Benjamin Bode: Knotted fields and real algebraic links

1:00pm, CM221

In order to implement knotted configurations in physical systems it is often very useful to have an explicit function, ideally a polynomial, f:R^3 -> C with a zero level set of given knot type. In this talk I will introduce an algorithm that for every link L constructs a polynomial f:R^4 -> R^2 whose zero level set on the unit three-sphere is L. Applying stereographic projection then makes these functions applicable to physical systems.

This constructive approach allows us to prove several results about the functions and their knotted zero level sets, for example under which conditions f can be taken to have an isolated singularity or when arg f is a fibration of the link complement over S^1.

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


Professor Tom Greggs: On the Nature, Task and Method of Theology: A Very Methodist Account

4:00pm, Palace Green Room 28 (D/PG28), Palace Green, Durham

Contact simon.oliver@durham.ac.uk for more information about this event.


Structuring Knowledges: Asking favours in medieval Eqypt: informal requests and petitions in papyrus letters - Seminar

4:15pm to 5:30pm, Seminar Room 2, Department of History, 43 North Bailey, Professor Petra Sijpesteijn (University of Leiden)

Contact h.g.foxhallforbes@durham.ac.uk for more information about this event.


The Continental Philosophy Reading Group: A Thousand Plateaus

5:00pm, TBC

Contact luke.sunderland@durham.ac.uk for more information about this event.