Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport
We develop a unified analytical framework that systematically connects kinetic theory, optimal transport, and entropy dissipation through the novel integration of hypocoercivity methods with geometric structures. Building upon but distinctly extending classical hypocoercivity approaches, we demonstr...
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MDPI AG
2025-05-01
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| Online Access: | https://www.mdpi.com/2075-1680/14/5/350 |
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| author | Cécile Barbachoux Joseph Kouneiher |
| author_facet | Cécile Barbachoux Joseph Kouneiher |
| author_sort | Cécile Barbachoux |
| collection | DOAJ |
| description | We develop a unified analytical framework that systematically connects kinetic theory, optimal transport, and entropy dissipation through the novel integration of hypocoercivity methods with geometric structures. Building upon but distinctly extending classical hypocoercivity approaches, we demonstrate how geometric control, via commutators and curvature-like structures in probability spaces, resolves degeneracies inherent in kinetic operators. Centered around the Boltzmann and Fokker–Planck equations, we derive sharp exponential convergence estimates under minimal regularity assumptions, improving on prior methods by incorporating Wasserstein gradient flow techniques. Our framework is further applied to the study of hydrodynamic limits, collisional relaxation in magnetized plasmas, the Vlasov–Poisson system, and modern data-driven algorithms, highlighting the central role of entropy as both a physical and variational tool across disciplines. By bridging entropy dissipation, optimal transport, and geometric analysis, our work offers a new perspective on stability, convergence, and structure in high-dimensional kinetic models and applications. |
| format | Article |
| id | doaj-art-3afc6ab6bf74440f86992e46087ccdef |
| institution | DOAJ |
| issn | 2075-1680 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Axioms |
| spelling | doaj-art-3afc6ab6bf74440f86992e46087ccdef2025-08-20T03:14:32ZengMDPI AGAxioms2075-16802025-05-0114535010.3390/axioms14050350Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal TransportCécile Barbachoux0Joseph Kouneiher1INSPE, Côte d’Azur University, 83300 Draguignan, FranceINSPE, Côte d’Azur University, 83300 Draguignan, FranceWe develop a unified analytical framework that systematically connects kinetic theory, optimal transport, and entropy dissipation through the novel integration of hypocoercivity methods with geometric structures. Building upon but distinctly extending classical hypocoercivity approaches, we demonstrate how geometric control, via commutators and curvature-like structures in probability spaces, resolves degeneracies inherent in kinetic operators. Centered around the Boltzmann and Fokker–Planck equations, we derive sharp exponential convergence estimates under minimal regularity assumptions, improving on prior methods by incorporating Wasserstein gradient flow techniques. Our framework is further applied to the study of hydrodynamic limits, collisional relaxation in magnetized plasmas, the Vlasov–Poisson system, and modern data-driven algorithms, highlighting the central role of entropy as both a physical and variational tool across disciplines. By bridging entropy dissipation, optimal transport, and geometric analysis, our work offers a new perspective on stability, convergence, and structure in high-dimensional kinetic models and applications.https://www.mdpi.com/2075-1680/14/5/350kinetic theoryBoltzmann equationhypercoercivityentropy dissipationoptimal transportWasserstein geometry |
| spellingShingle | Cécile Barbachoux Joseph Kouneiher Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport Axioms kinetic theory Boltzmann equation hypercoercivity entropy dissipation optimal transport Wasserstein geometry |
| title | Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport |
| title_full | Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport |
| title_fullStr | Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport |
| title_full_unstemmed | Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport |
| title_short | Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport |
| title_sort | analytical and geometric foundations and modern applications of kinetic equations and optimal transport |
| topic | kinetic theory Boltzmann equation hypercoercivity entropy dissipation optimal transport Wasserstein geometry |
| url | https://www.mdpi.com/2075-1680/14/5/350 |
| work_keys_str_mv | AT cecilebarbachoux analyticalandgeometricfoundationsandmodernapplicationsofkineticequationsandoptimaltransport AT josephkouneiher analyticalandgeometricfoundationsandmodernapplicationsofkineticequationsandoptimaltransport |