3 papers
cs.LG2026
How Token Influence Decays with Distance: A Green-Function View of Trained Language Models
Matthias Brändel, Stephan Köhler, Oliver Rheinbach
We study how the next-token prediction of an autoregressive Transformer language model changes under small perturbations of earlier input token embeddings. Motivated by operator le…
math.NA2025
Combining Nonlinear FETI-DP Methods and Quasi-Newton Methods using an SQP Approach
Stephan Köhler, Oliver Rheinbach
The combination of nonlinear FETI-DP (Dual Primal Finite Element Tearing and Interconnecting) and Quasi-Newton methods using a sequential quadratic programming (SQP) approach is co…
math.NA2025
Monolithic Multi-level Overlapping Schwarz Solvers for Fluid Problems
Stephan Köhler, Oliver Rheinbach
Additive overlapping Schwarz Methods are iterative methods of the domain decomposition type for the solution of partial differential equations. Numerical and parallel scalability o…