Geodesic
Singular solutions of the equation $\Box\varphi+(m^2/2)\exp\varphi=0$ and dynamics of singularities
Teoretičeskaâ i matematičeskaâ fizika, Tome 40 (1979) no. 2, pp. 221-234 
G. P. Jorjadze; A. K. Pogrebkov; M. K. Polivanov. Singular solutions of the equation $\Box\varphi+(m^2/2)\exp\varphi=0$ and dynamics of singularities. Teoretičeskaâ i matematičeskaâ fizika, Tome 40 (1979) no. 2, pp. 221-234. http://geodesic.mathdoc.fr/item/TMF_1979_40_2_a4/
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     author = {G. P. Jorjadze and A. K. Pogrebkov and M. K. Polivanov},
     title = {Singular solutions of the equation $\Box\varphi+(m^2/2)\exp\varphi=0$ and dynamics of singularities},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {221--234},
     year = {1979},
     volume = {40},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1979_40_2_a4/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Solutions of the Liouville equation with singularities are studied. The solutions are interpreted geometrically and their topological invariants found. Dynamical systems describing the motion of singularities are considered. Some simple examples are described in detail.

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