{ "id": "1701.04083", "version": "v1", "published": "2017-01-15T17:36:05.000Z", "updated": "2017-01-15T17:36:05.000Z", "title": "Null controllability of a cascade model in population dynamics", "authors": [ "Bedr'Eddine Ainseba", "Younes Echarroudi", "Lahcen Maniar" ], "categories": [ "math.OC" ], "abstract": "In this paper, we are concerned with the null controllability of a linear population dynamics cascade systems (or the so-called prey-predator models) with two different dispersion coefficients which degenerate in the boundary and with one control force. We develop first a Carleman type inequality for its adjoint system, and then an observability inequality which allows us to deduce the existence of a control acting on a subset of the space domain which steers both populations of a certain age to extinction in a finite time.", "revisions": [ { "version": "v1", "updated": "2017-01-15T17:36:05.000Z" } ], "analyses": { "subjects": [ "35K65", "92D25", "93B05", "93B07" ], "keywords": [ "null controllability", "cascade model", "linear population dynamics cascade systems", "carleman type inequality", "observability inequality" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }