“…So, in some sense, conditions (C1) and (C2) are sharp. Theorem 2.3 generalizes the main result in [13], where only foliations consisting of hyperplanes are considered. In the next example we show the limitations of linear (or affine) coordinate changes which are used in [13].…”
Section: Remark 24 1) Condition (21) Can Be Easily Interpreted Geosupporting
We prove the following result: if a continuous vector field F is Lipschitz when restricted to the hypersurfaces determined by a suitable foliation and a transversal condition is satisfied at the initial condition, then F determines a locally unique integral curve. We also present some illustrative examples and sufficient conditions in order to apply our main result.
“…So, in some sense, conditions (C1) and (C2) are sharp. Theorem 2.3 generalizes the main result in [13], where only foliations consisting of hyperplanes are considered. In the next example we show the limitations of linear (or affine) coordinate changes which are used in [13].…”
Section: Remark 24 1) Condition (21) Can Be Easily Interpreted Geosupporting
We prove the following result: if a continuous vector field F is Lipschitz when restricted to the hypersurfaces determined by a suitable foliation and a transversal condition is satisfied at the initial condition, then F determines a locally unique integral curve. We also present some illustrative examples and sufficient conditions in order to apply our main result.
“…For extensions of the Picard-Lindelöf theorem using contractions we refer the reader to [2], [3] and [4]. A different generalization was given in [6]. However, our proof is more elementary, once some local existence result is available.…”
Consider the differential equation y ′ = F (x, y). We determine the weakest possible upper bound on |F (x, y)− F (x, z)| which guarantees that this equation has for all initial values a unique solution, which exists globally.
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