Title: An Introduction to Causal Set Theory Speaker: Dionigi M.T. Benincasa (DIAS) Abstract: Causal set theory is a sum-over-histories approach to quantum gravity, where the histories are discrete spacetimes (called causal sets) defined as locally finite partial orders. Causal sets were… Read More

Title: A Hopf algebra for Feynman diagrams and integral Speaker: Ruth Britto (Trinity College Dublin) Abstract: I will present a combinatorial operation on one-loop Feynman diagrams, described by cutting and pinching edges, that corresponds to the Hopf-algebraic coaction on the… Read More

Title: An M5-Brane Model Speaker: Christian Sämann (Heriot-Watt University) Abstract: We show how to write an action for a classical six-dimensional superconfomal field theory containing a non-abelian tensor multiplet. All of the ingredients of this action have been available in… Read More

Title: Commuting Matrices, MacDonald Identities & Supersymmetric Gauge Theory Speaker: Giovanni Felder (ETH Zurich) Abstract: I will introduce the notion of representation homology, following Berest, Khatchatrian and Ramadoss, and discuss some examples, applications and open problems about pairs of commuting… Read More