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nlin.SI2002★ 24 cited
Linearisable third order ordinary differential equations and generalised Sundman transformations
N. Euler, T. Wolf, P. G. L. Leach +1
We calculate in detail the conditions which allow the most general third order ordinary differential equation to be linearised in X'''(T)=0 under the transformation X(T)=F(x,t), dT…
gr-qc2002★ 13 cited
G_2 Perfect-Fluid Cosmologies with a proper conformal Killing vector
Marc Mars, Thomas Wolf
We study the Einstein field equations for spacetimes admitting a maximal two-dimensional abelian group of isometries acting orthogonally transitively on spacelike surfaces and, in…