Geodesic
Methods for kinetic equation of rarefied gases simulation of spiral waves in round excitable medium
Matematičeskoe modelirovanie, Tome 6 (1994) no. 2, pp. 61-74.

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Two approches to simulation of spiral waves in excitable medium of restricted size are considered which based on reaction-diffusion models and on kinematic description of autowave fronts evolution. Apart from known centersymmetrical solution a new two-periodical regime was discovered. It is shown that parameters of both regimes as well as their stability depend on the size of the excitable medium. 
@article{MM_1994_6_2_a4,
     author = {V. S. Zykov and O. L. Motvzova},
     title = {Methods for kinetic equation of rarefied gases simulation of spiral waves in round excitable medium},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {61--74},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1994_6_2_a4/}
}
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V. S. Zykov; O. L. Motvzova. Methods for kinetic equation of rarefied gases simulation of spiral waves in round excitable medium. Matematičeskoe modelirovanie, Tome 6 (1994) no. 2, pp. 61-74. http://geodesic.mathdoc.fr/item/MM_1994_6_2_a4/