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The existence of an infinite number of elliptic and hyperbolic periodic trajectories for a convex billiard

✍ Scribed by M. M. Dvorin; V. F. Lazutkin


Publisher
Springer US
Year
1973
Tongue
English
Weight
371 KB
Volume
7
Category
Article
ISSN
0016-2663

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## Dedicated to the memory of Leonid R. Volevich Let X = (X1, . . . , Xm) be an infinitely degenerate system of vector fields. We study the existence and regularity of multiple solutions of the Dirichlet problem for a class of semi-linear infinitely degenerate elliptic operators associated with th