Geodesic
Rotational waves in optical system with 2-d feedback
Matematičeskoe modelirovanie, Tome 5 (1993) no. 4, pp. 105-119 
A. V. Razgulin. Rotational waves in optical system with 2-d feedback. Matematičeskoe modelirovanie, Tome 5 (1993) no. 4, pp. 105-119. http://geodesic.mathdoc.fr/item/MM_1993_5_4_a6/
@article{MM_1993_5_4_a6,
     author = {A. V. Razgulin},
     title = {Rotational waves in optical system with 2-d feedback},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {105--119},
     year = {1993},
     volume = {5},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1993_5_4_a6/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

The model of optical rezonator with field rotation in feedback contour, described by parabolic equation with spatial coordinates transformation, is considered. The existence of periodical spatially – nonhomogeneous solutions of rotational waves type which appeared after Andronov–Hopf bifurcation is proved. Solutions are obtained as series over small parameter, their stability are studied.