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Department of Mathematical Sciences


This week's seminars

Maths HEP Lunchtime Seminars: On self-dual N=4 theories

Presented by Iñaki García Etxebarria, Max Planck Munich

3 November 2017 13:00 in CM221

Known N=4 theories in four dimensions are characterized by a choice of
gauge group, and in some cases some "discrete theta angles", as
classified by Aharony, Seiberg and Tachikawa. I will review how this
data, for the theories with algebra su(N), is encoded in various
familiar realizations of the theory, in particular in the
compactification of the (2,0) A_N theory on T^2, and in the holographic
AdS_5 \times S^5 dual. I will then show how the resulting structure,
given by a choice of polarization of an appropriate cohomology group,
admits additional choices that, unlike known theories, generically
preserve SL(2,Z) invariance in four dimensions.

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Research Seminars by Series

The research groups in the Department of Mathematical Sciences hold several seminar series in term time. Information on date, time and location are available here.

For information on previous years' seminars please see the seminar archives pages.