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Sol Geometry
Definition
The geometry of the Lie group R semidirect product with R^2, where R acts on R^2 by (t, (x, y))->(e^t x, e^(-t) y).
Related term
The geometry of the Lie group R semidirect product with R^2, where R acts on R^2 by (t, (x, y))->(e^t x, e^(-t) y).