2 papers
math-ph2026
Finite lattice kinetic equations for bosons, fermions, and discrete NLS
Jani Lukkarinen, Sakari Pirnes, Aleksis Vuoksenmaa
We introduce and study finite lattice kinetic equations for bosons, fermions, and discrete NLS. For each model this closed evolution equation provides an approximate description fo…
math.AP2025
Global existence of measure-valued solutions to the multicomponent Smoluchowski coagulation equation
Marina A. Ferreira, Sakari Pirnes
Global solutions to the multicomponent Smoluchowski coagulation equation are constructed for measure-valued initial data with minimal assumptions on the moments. The framework is b…