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Ulam Stability of Thompson Groups

Explore Ulam stability of Thompson groups through asymptotic cohomology. Gain insights into this rigidity property for discrete groups and its application to groups F, T, and V.
- YouTube
- 40 minutes
- On-Demand
- Free Video
Finitely Presented Simple Groups of Homeomorphisms of the Reals

Explore Thompson's groups and finitely generated simple groups of homeomorphisms, with insights into joint research on finitely presented examples.
- YouTube
- 39 minutes
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Uniqueness and Non-Uniqueness for Percolation on Groups

Explore percolation theory on groups, examining uniqueness and non-uniqueness of infinite clusters and their connections to group-theoretic concepts.
- YouTube
- 49 minutes
- On-Demand
- Free Video
Topological and Conformal Dimensions of Self-Similar Groups

Explore topological and conformal dimensions of self-similar groups, examining their limit spaces and associated dynamical systems in geometric group theory.
- YouTube
- 50 minutes
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A Non-symmetric Kesten Criterion for Random Walks on Groups

Explore a non-symmetric version of Kesten's criterion for random walks on countable groups, relating to amenability and probability of return to identity.
- YouTube
- 47 minutes
- On-Demand
- Free Video
Semi-Classical Analysis of Strong Cosmic Censorship - Lecture

Explore semi-classical analysis of strong cosmic censorship in General Relativity. Delve into quantum effects on Cauchy horizons and their implications for determinism in black hole spacetimes.
- YouTube
- 51 minutes
- On-Demand
- Free Video
Obstruction-Free Gluing for the Einstein Equations

Explore a novel approach to gluing solutions of Einstein equations, removing obstructions and utilizing nonlinearity of constraint equations in General Relativity.
- YouTube
- 47 minutes
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The Feynman Propagator and Self-Adjointness in Wave Operators - Lecture

Explore Feynman and anti-Feynman inverses for wave operators on Lorentzian manifolds, connecting to self-adjointness and positivity properties of wave operators.
- YouTube
- 54 minutes
- On-Demand
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New Proposal for Renormalisation Group Equations on Curved Spacetimes

Explore new renormalisation group equations for curved spacetimes, focusing on perturbative algebraic quantum field theory and flow equations applicable to arbitrary globally hyperbolic spacetimes.
- YouTube
- 53 minutes
- On-Demand
- Free Video
Hadamard States for Maxwell Fields via Complete Gauge Fixing

Explore Hadamard states for Maxwell fields through complete gauge fixing, delving into spectral theory and mathematical relativity concepts.
- YouTube
- 41 minutes
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The Relative Trace Formula in Electromagnetic Scattering

Explore electromagnetic scattering through a relative trace formula, examining perfectly conducting obstacles' impact on fields and the challenges posed by Maxwell's equations.
- YouTube
- 51 minutes
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Infrared Finite Scattering Theory in QFT and Quantum Gravity

Explore infrared finite scattering theory in QFT and quantum gravity, addressing IR divergences, memory effects, and challenges in constructing IR-finite S-matrices across various theories.
- YouTube
- 56 minutes
- On-Demand
- Free Video
Feynman Propagators on Curved Spacetime

Explore Feynman propagators on curved spacetime, their construction, and connection to quantum states. Delve into microlocal techniques and their application to wave and Dirac-type operators.
- YouTube
- 57 minutes
- On-Demand
- Free Video
Wave Equations in Kerr-de Sitter Spacetimes - The Full Subextremal Range

Explore wave equations in Kerr-de Sitter spacetimes, extending Vasy's results to the full subextremal range and analyzing photon trapping around black holes.
- YouTube
- 56 minutes
- On-Demand
- Free Video
Nonlinear Stability of Kerr-de Sitter Spacetimes

Explore nonlinear stability of slowly-rotating Kerr-de Sitter black holes, focusing on a new proof using vectorfield method and bootstrap scheme to uncover high-frequency spectral gap.
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