Congratulations to Ryan for his recent publication in Journal of Plasma Physics of his     work “Symmetries of a reduced fluid-gyrokinetic system”

From the abstract: “Symmetries of a fluid-gyrokinetic model are investigated using Lie group techniques. […] A large variety of exact symmetries is uncovered, some of which have unexpected form. Using these results, new nonlinear solutions are constructed, including a helical generalization of the Chapman–Kendall solution for a collapsing current sheet.”

Link to the paper: https://www.cambridge.org/core/journals/journal-of-plasma-physics/article/symmetries-of-a-reduced-fluidgyrokinetic-system/33859F82081FA3E46DDB1D3C9149079F