GLEN 2019, Sheffield

Singularities and Derived Categories

GLEN is a joint seminar in algebraic geometry between the Universities of Glasgow, Liverpool, Manchester, Sheffield and Edinburgh.

We hosted a two-day GLEN meeting in Sheffield on 13 – 14 November 2019. The talks were introductory to several themes on singularities and accessible to PhD students in algebraic geometry.


We had some funds to support early career researchers, for travel and accommodation. This was provided on the first-come first-served basis.


Wednesday 13 November 2019

Yanki Lekili: Categorical resolutions via Fukaya categories, 3.00pm - 4.15pm

Coffee break

Eleonore Faber: Singularities coming from reflection groups and the McKay correspondence, 4.45pm - 6.00pm

Social dinner

Thursday 14 November 2019

Michael Wemyss: Noncommutative Resolutions for Philistines, 9.30am - 10.45am

Coffee break

Andreas Hochenegger: Hochschild cohomology and formality, 11.15am - 12.30pm

Lunch break

Mirko Mauri: Introduction to dual complexes of singularities, 2.00pm - 3.15pm

Coffee break

Greg Stevenson: An introduction to derived singularities, 4.00pm - 5.00pm (joint with Topology Seminar, room LT7)

Practical information

Talks took place at the School of Mathematics and Statistics of the University of Sheffield, in room J-11 (floor J) at the Hicks Building.

Visit the map for help finding the building and some information for visitors.

The common room I-15 at floor I was open from 12.00pm on Wednesday to welcome you there.

On Wednesday evening we had a social dinner at 7.00pm at Mount Lebanon (address: 1st FLOOR, 169-171 West St, Sheffield S1 4EW).

Funding and accommodation

We kindly asked participants to reserve their own accommodation. We were able to cover accommodation and travel expenses for young researchers within reasonable bounds.


Anna Barbieri, Cristina Manolache, Nebojsa Pavic, Evgeny Shinder.


Nebojsa, Anna


The workshop was supported by a LMS Scheme 3 grant, and EPSRC Programme grant “Enhancing Representation Theory, Noncommutative Algebra And Geometry Through Moduli, Stability And Deformations”, and we are grateful for their support.