Celiac-Plexus
发表于 2025-3-28 15:05:59
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泰然自若
发表于 2025-3-28 21:20:17
Sarah Blissett,Vaikom S. Mahadevan the neighbourhood of a singular point it is natural to linearize the problem, so that we are then investigating the phase portrait of a linear vector field (for which, incidentally, the local study at the origin and the global study are the same thing). In this chapter we shall see that such an app
可互换
发表于 2025-3-29 00:18:52
Interventions in Career Design and Educationum point? This translates into our technical language as follows. Consider a vector field . on a phase space ., and a point . at which . 0 (recall that such a point is traditionally called a .. By differentiation at . we associate to these a linear vector field ., which we naturally call the . of .
blithe
发表于 2025-3-29 05:32:05
Interventions in Career Design and Educationd orbits (known also under the poetic name of .). They are studied by a method that goes back to Poincaré. This consists of choosing a point a of the closed orbit Ω, taking a small piece of hypersurface . through o and transverse to Ω, and for each . € . considering the first point . at which the or
乞讨
发表于 2025-3-29 10:44:51
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障碍物
发表于 2025-3-29 13:52:25
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municipality
发表于 2025-3-29 19:00:05
Karl-Heinz Deeg,Burkhard Trusenther is invertible, and what regularity can we hope for in the inverse map? In fact it is very rare to be able to prove that the map is globally invertible, and we have to restrict ourselves to a ’local’ statement.