2 papers
physics.comp-ph2026
Bayesian Inference: Kernel-Based Model for Surface Temperature Reconstruction in Ice Borehole Thermometry
Kshema Shaju, Thomas Laepple, Peter Zaspel
Reconstructing past surface temperature from shallow ice borehole temperature profiles requires solving an ill-posed inverse problem while quantifying uncertainties arising from me…
math.NA2026
Variational Free Energy Pivot Selection for Pivoted Cholesky
Louise Schaub, Peter Zaspel
Pivoted Cholesky factorizations construct low-rank approximations of symmetric positive definite matrices by sequentially selecting pivots from the residual diagonal. Classical gre…