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Title: | The entry-exit function and geometric singular perturbation theory | Authors: | DE MAESSCHALCK, Peter Schecter, Stephen |
Issue Date: | 2016 | Publisher: | ACADEMIC PRESS INC ELSEVIER SCIENCE | Source: | JOURNAL OF DIFFERENTIAL EQUATIONS, 260 (8), p. 6697-6715 | Abstract: | For small epsilon > 0, the system (x) over dot = epsilon, (z) over dot = h(x, z, s)z, with h(x, 0, 0) < 0 for x < 0 and h(x, 0, 0) > 0 for x > 0, admits solutions that approach the x-axis while x < 0 and are repelled from it when x > 0. The limiting attraction and repulsion points are given by the well-known entry-exit function. For h(x, z, s)z replaced by h(x, z, epsilon)z(2), we explain this phenomenon using geometric singular perturbation theory. We also show that the linear case can be reduced to the quadratic case, and we discuss the smoothness of the return map to the line z = z(0), z(0) > 0, in the limit epsilon -> 0. (C) 2016 Elsevier Inc. All rights reserved. | Notes: | [De Maesschalck, Peter] Hasselt Univ, Dept Math & Stat, B-3590 Diepenbeek, Belgium. [Schecter, Stephen] N Carolina State Univ, Dept Math, Box 8205, Raleigh, NC 27695 USA. | Keywords: | Entry-exit function; Geometric singular perturbation theory; Bifurcation delay; Blow-up; Turning point;entry–exit function; geometric singular perturbation theory; bifurcation delay; blow-up; turning point | Document URI: | http://hdl.handle.net/1942/21884 | ISSN: | 0022-0396 | e-ISSN: | 1090-2732 | DOI: | 10.1016/j.jde.2016.01.008 | ISI #: | 000371450000009 | Rights: | © 2016 Elsevier Inc. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2017 |
Appears in Collections: | Research publications |
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