Abstract
Let v : Rn → Rn be a C1 vector field which has a singular point O and its linearization is asymptotically stable at every point of Rn. We say that the vector field v satisfies the Markus-Yamabe conjecture if the critical point O is a global attractor of the dynamical system over(x, ̇) = v (x). In this note we prove that if v is a gradient vector field, i.e. v = ∇ f (f ∈ C2), then the basin of attraction of the critical point O is the whole Rn, thus implying the Markus-Yamabe conjecture for this class of vector fields. An analogous result for discrete dynamical systems of the form xm + 1 = ∇ f (xm) is proved. © 2005 Elsevier Inc. All rights reserved.
Original language | English |
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Pages (from-to) | 580-586 |
Journal | Journal of Mathematical Analysis and Applications |
Volume | 322 |
DOIs | |
Publication status | Published - 15 Oct 2006 |
Keywords
- Global attractor
- Gradient dynamical system
- Markus-Yamabe conjecture