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20002026
most citedWhy many theories of shock waves are necessary. Convergence error in formally path-consistent schemes

250 citations · 1.1k across the 130 of their papers we have counts for

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math.NA2026

Physics-informed token transformer methodology for nonlinear balance laws. I. Schwarzschild--Burgers fluid flows

Philippe G. LeFloch, Shuyang Xiang

We introduce a Physics-Informed Token Transformer (PITT) methodology for nonlinear hyperbolic balance laws in one space dimension, using piecewise steady-state profiles for the rep…

math.NA2024

A class of kernel-based scalable algorithms for data science

Philippe G. LeFloch, Jean-Marc Mercier, Shohruh Miryusupov

We present several generative and predictive algorithms based on the RKHS (reproducing kernel Hilbert spaces) methodology, which, most importantly, are scale up efficiently with la…

math.NA2024★ 2 cited

Extrapolation and generative algorithms for three applications in finance

Philippe G. LeFloch, Jean-Marc Mercier, Shohruh Miryusupov

For three applications of central interest in finance, we demonstrate the relevance of numerical algorithms based on reproducing kernel Hilbert space (RKHS) techniques. Three use c…

math.NA2024

Reproducing kernel methods for machine learning, PDEs, and statistics

Philippe G. LeFloch, Jean-Marc Mercier, Shohruh Miryusupov

This monograph develops a unified, application-driven framework for kernel methods grounded in reproducing kernel Hilbert spaces (RKHS) and optimal transport (OT). Part I lays the…

math.NA2023

A class of mesh-free algorithms for some problems arising in finance and machine learning

Philippe G. LeFloch, Jean-Marc Mercier

We introduce a numerical methodology, referred to as the transport-based mesh-free method, which allows us to deal with continuous, discrete, or statistical models in the same unif…

math.NA2020

A well-balanced positivity preserving cell-vertex finite volume method satisfying the discrete maximum-minimum principle for coupled models of surface water flow and scalar transport

Hasan Karjoun, Abdelaziz Beljadid, Philippe G. LeFloch

We develop a new finite volume method using unstructured mesh-vertex grids for coupled systems modeling shallow water flows and solute transport over complex bottom topography. Nov…