32 citations · 114 across the 16 of their papers we have counts for
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math.OC2026
Convergence of a Randomized Newton Method in Nonconvex Optimization
Edward Huynh, Björn Engquist
We analyze a stochastic Newton optimization scheme for locating the unique global minimizer of a general nonconvex objective function. The method couples a Newton algorithm to addi…
physics.geo-ph2026
Diffusion-guided optimization for full waveform inversion
Yiran Shen, Yangkang Chen, Björn Engquist
We present a diffusion-guided full waveform inversion (FWI) study in which pretrained diffusion generative models are used as learned regularizers inside a PDE-constrained seismic…
math.NA2026
Sampling Using Hybrid Stochastic Dynamics
Björn Engquist, Kui Ren, Yunan Yang
This work proposes a framework for sampling from the Gibbs distribution of a given potential using hybrid stochastic dynamics. In this framework, two distinct sampling dynamics are…