Calendar of Events
See below the calendar and details of our upcoming AGQ events, including various regular seminars, local workshops & conferences, and cohort activities.
Please see the Training page for timetabling of current courses.
Current students, supervisors and colleagues, please contact us with any upcoming events or ongoing seminar series of interest to AGQ students, and we will include them here.
External partners, please contact us if you are organising an event that may be of interest to our students.
- April 30, 2025
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Algebra seminar: Nik Garner (Oxford) - On BRST Complexes of Graded Unitary Vertex Operator Algebras
April 30, 2025 9:30 am - 10:30 am
Abstract: Vertex operator algebras (VOAs) arise in many corners of supersymmetric quantum field theory. One particularly influential instance is in four-dimensional N=2 superconformal field theories (SCFTs), whereby the VOA is realized as the cohomology of a suitable supercharge. Unitarity of the underlying SCFT imposes strong constraints on the structure of the resulting VOAs; ongoing work of Ardehali, Beem, Lemos, and Rastelli proposes that four-dimensional unitarity is realized in the VOA via a notion they call graded unitarity.
In this talk, I will review this notion and describe structural aspects of the chain complexes underlying relative semi-infinite cohomology (alias: BRST complexes) of graded unitary VOAs. We will see that these BRST complexes share a striking resemblance to the de Rham complexes of compact Kähler manifolds. I will finish with several consequences of this observation, e.g. the formality of these relative semi-infinite cohomologies as in the work of Deligne, Griffiths, Morgan, and Sullivan on the de Rham cohomology of compact Kähler manifolds. This is based on work in progress with C. Beem.
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Algebra seminar: Marc Technau (Graz) - TBA
April 30, 2025 10:50 am - 11:50 am
Abstract: TBA
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EMPG Pre-seminar
April 30, 2025 1:30 pm - 2:30 pm
7 George Square, Edinburgh EH8 9JZ, UK -
EMPG Seminar: Emma Albertini (Imperial)
April 30, 2025 2:45 pm - 3:45 pm
7 George Square, Edinburgh EH8 9JZ, UK -
EMPG Seminar: Greger Torgrimsson (Umea)
April 30, 2025 4:00 pm - 5:00 pm
7 George Square, Edinburgh EH8 9JZ, UK
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- May 7, 2025
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Algebra seminar: Francesco Costantino () - TBA
May 7, 2025 9:30 am - 10:30 am
Abstract - TBA
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EDGE Seminar: Daniil Mamaev (LSGNT) - TBA
May 7, 2025 10:50 am - 11:50 am
Bayes 5.46TBA
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- May 14, 2025
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EDGE Seminar: Abigail Ward (University of Cambridge) - TBA
May 14, 2025 10:50 am - 11:50 am
Bayes 5.46TBA
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Category Theory Seminar: Luuk Stehouwer (Dalhousie) - TBA
May 14, 2025 12:00 pm - 1:00 pm
Bayes 5.45
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- May 21, 2025
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EDGE Seminar: Sebastian Haney (Columbia University) - TBA
May 21, 2025 9:30 am - 10:30 am
Bayes 5.46 -
EDGE Seminar: Luca Giovenzana (University of Sheffield)
May 21, 2025 10:50 am - 11:50 am
Bayes 5.46
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