Marcel G. Clerc is a Full Professor of the Physics department at Universidad de Chile. He obtained his Ph. D. at University of Nice and Sophia Antipolis, Nice, France.

Lecture:  “Analytical studies of fronts, colonies, and patterns: Combination of the Allee effect and nonlocal competition interactions”

When: Tuesday, 19th March, 13:30 hrs.

Where: Sala Penal, Universidad del Desarrollo, campus Rector Ernesto Silva Bafalluy, Av. La Plaza 680, Las Condes.

Language: Spanish (questions and commentaries in English are very welcome).

Abstract: We present an analytic study of traveling fronts, localized colonies, and extended patterns arising from a reaction-diffusion equation which incorporates simultaneously two features: the well-known Allee effect and spatially nonlocal competition interactions. The former is an essential ingredient of most systems in population dynamics and involves extinction at low densities, growth at higher densities, and saturation at still higher densities. The latter feature is also highly relevant, particularly to biological systems, and goes beyond the unrealistic assumption of zero-range interactions. We show via exact analytic methods that the combination of the two features yields a rich diversity of phenomena and permits an understanding of a variety of issues including spontaneous appearance of colonies.

Poster: