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24 papers
Paper YouTube Presentation PDFs
Hypocoercivity of Tempered Bouncy Particle Samplers for heavy-tailed targets Part 1: Results
Part 2: Ideas & proofs
Results
Ideas & proofs
Diffeomorphic Markov chain Monte Carlo: fast mixing for heavy-tailed distributions DCS algorithm Slides
Limit Theorems for Stochastic Gradient Descent with Infinite Variance SGD limit theorems Slides
Central Limit Theorem for ergodic averages of Markov chains & the comparison of sampling algorithms for heavy-tailed distributions Part 1: Theory & ULA
Part 2: MCMC applications
Theory & ULA
MCMC applications
Stability of storage processes with general release rates Stability & tail bounds Slides
Multivariate CLT for Lévy processes: convergence rates without moment assumptions Convergence rates Slides
Critical branching processes with immigration: scaling limits of local extinction sets Part 1: Results
Part 2: Proofs
Results
Proofs
Central limit theorem for superdiffusive reflected Brownian motion Gaussian fluctuations Slides
Asymptotically optimal Wasserstein couplings for the small-time stable domain of attraction Couplings & rates Slides
Non-asymptotic bounds for forward processes in denoising diffusions: Ornstein-Uhlenbeck is hard to beat Part 1: Setting & results
Part 2: General results & proofs
Setting & results
General results & proofs
Subexponential lower bounds for f-ergodic Markov processes Part 1: Results
Part 2: Proofs
Results
Proofs
Superdiffusive limits for stochastic kinetics driven by self-similar drifts Model, results & proofs Slides
Fast exact simulation of the first-passage event of a subordinator Part 1: Algorithm & complexity
Part 2: Proofs & numerics
Algorithm & complexity
Proofs & numerics
Fast exact simulation of the first passage of a tempered stable subordinator across a non-increasing function Part 1: Exact simulation
Part 2: Monte Carlo applications
Exact simulation
Monte Carlo applications
Brownian motion with asymptotically normal reflection in unbounded domains: from transience to stability Part 1: Stability & rates
Part 2: Proof ideas
Stability & rates
Proof ideas
Reflecting Brownian motion in generalized parabolic domains: explosion and superdiffusivity Part 1: Results
Part 2: Proofs
Results
Proofs
Hölder continuity of the convex minorant of a Lévy process Hölder regularity Slides
How smooth can the convex hull of a Lévy path be? Boundary growth rates Slides
When is the convex hull of a Lévy path smooth? Part 1: Smoothness criteria
Part 2: Further results
Shared slides
Convex minorants and the fluctuation theory of Lévy processes Fluctuation theory & SBRT Slides
Asymptotic shape of the concave majorant of a Lévy process Results Slides
Monte Carlo algorithm for the extrema of tempered stable processes Tempered stick-breaking Slides
Geometrically Convergent Simulation of the Extrema of Lévy Processes Stick-breaking algorithm Slides
Simulation of the drawdown and its duration in Lévy models via stick-breaking Gaussian approximation Gaussian approximation Slides