{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:15:17Z","timestamp":1760058917542,"version":"build-2065373602"},"reference-count":56,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2025,5,4]],"date-time":"2025-05-04T00:00:00Z","timestamp":1746316800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Axioms"],"abstract":"<jats:p>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\u2013Planck 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\u2013Poisson 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.<\/jats:p>","DOI":"10.3390\/axioms14050350","type":"journal-article","created":{"date-parts":[[2025,5,4]],"date-time":"2025-05-04T20:10:27Z","timestamp":1746389427000},"page":"350","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Analytical and Geometric Foundations and Modern Applications of Kinetic Equations and Optimal Transport"],"prefix":"10.3390","volume":"14","author":[{"given":"C\u00e9cile","family":"Barbachoux","sequence":"first","affiliation":[{"name":"INSPE, C\u00f4te d\u2019Azur University, 83300 Draguignan, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1564-5368","authenticated-orcid":false,"given":"Joseph","family":"Kouneiher","sequence":"additional","affiliation":[{"name":"INSPE, C\u00f4te d\u2019Azur University, 83300 Draguignan, France"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,4]]},"reference":[{"key":"ref_1","first-page":"489","article-title":"Wasserstein gradient flows for kinetic equations","volume":"245","author":"Lu","year":"2022","journal-title":"Arch. 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