Journal
CALCULUS OF VARIATIONS AND PARTIAL DIFFERENTIAL EQUATIONS
Volume 57, Issue 5, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00526-018-1412-0
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Funding
- European Research Council under the European Union's Seventh Framework Program (FP/2007-2013)/ERC Grant [321186]
- French National Research Agency (ANR), within project NONLOCAL [ANR-14-CE25-0013]
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We investigate the large time behavior of solutions of reaction-diffusion equations with general reaction terms in periodic media. We first derive some conditions which guarantee that solutions with compactly supported initial data invade the domain. In particular, we relate such solutions with front-like solutions such as pulsating traveling fronts. Next, we focus on the homogeneous bistable equation set in a domain with periodic holes, and specifically on the cases where fronts are not known to exist. We show how the geometry of the domain can block or allow invasion. We finally exhibit a periodic domain on which the propagation takes place in an asymmetric fashion, in the sense that the invasion occurs in a direction but is blocked in the opposite one.
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