# M-theory singularities: Going beyond Dynkin diagrams

- Institution: CERN
- Department: TH institutes
- Speaker: Andres Collinucci
- Year: 2019
- Language: English
- Subjects: Mathematics
- Source: [CERN](https://videos.cern.ch/record/3010584)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

M-theory on an ADE singularity gives rise to an ADE gauge theory at low energies. However, the "T-brane" phenomenon completely shatters this picture, and reveals that simply resolving singularities, and uncovering a Dynkin diagram is insufficient to understand what's really going on. I will demonstrate how exploiting 3d mirror symmetry sheds light on T-branes, and gives us a new definition of the phenomenon for all ADE algebras. For the E-series, we will see how non-Lagrangian theories actually simplify the problem..

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## Lectures

1. [M-theory singularities: Going beyond Dynkin diagrams](https://invisiblenetwork.ai/learn/cern/3010584/ef2ad51bf3ef), 49 min (CERN's player)