On the Global Behavior of Differential Equations on Two-dimensional Manifolds1
نویسنده
چکیده
The following is concerned with the in-the-large behavior of characteristics of differential equations on closed orientable manifolds. C+ will denote a positive semi-characteristic, C the set of co-limit2 points of C+, V the vector field defining the differential equation, M the manifold under consideration, and W the vector field orthogonal to V. In all that follows we shall assume that M is two-dimensional, closed and orientable. The following theorem holds:
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تاریخ انتشار 2010